The urinary system consists of the kidneys, nephrons, ureters, urinary bladder, and urethra. The nephron is the functional unit of the kidney and is made up of the renal corpuscle and renal tubule. The renal corpuscle contains the glomerulus and Bowman's capsule, which filters the blood to form urine. The renal tubule is divided into the proximal convoluted tubule, loop of Henle, and distal convoluted tubule, where reabsorption and secretion of substances occurs to regulate water and electrolyte levels. The collecting ducts then collect the urine from multiple nephrons and excrete it from the body.
Structure of nephron and functions of its partsDuaShaban
The nephron is the structural and functional unit of the kidney that filters blood to form urine. It consists of a renal corpuscle containing the glomerulus and Bowman's capsule, and renal tubules. The glomerulus filters blood to form filtrate, which passes through three segments of the tubules - the proximal convoluted tubule, loop of Henle, and distal convoluted tubule. These tubule segments reabsorb essential substances and further concentrate the filtrate through selective reabsorption and secretion to produce urine and maintain electrolyte and pH balance.
The document summarizes key aspects of kidney function and structure. It defines excretion as the removal of waste from the body, like nitrogenous wastes from protein digestion. The kidney filters blood and reabsorbs necessary substances while excreting waste in urine. The kidney contains nephrons which filter blood in the glomerulus and reabsorb most water and nutrients back into blood along various portions of the nephron tubules. The loop of Henle and collecting duct help concentrate urine by establishing salt gradients. Urine composition differs from the original glomerular filtrate due to selective reabsorption of useful substances in the kidney.
1. The document describes the structure and function of the nephron, the basic structural and functional unit of the kidney. It details the two main parts of each nephron - the renal corpuscle and renal tubule.
2. The renal corpuscle includes the glomerulus, a capillary network, and Bowman's capsule, which encloses the glomerulus. The renal tubule consists of the proximal convoluted tubule, loop of Henle, and distal convoluted tubule.
3. Urine is formed through glomerular filtration, tubular reabsorption, and tubular secretion as fluid passes through the nephron. Most reabsorption occurs in the proximal convol
The urinary system removes waste from the body via the kidneys, ureters, bladder, and urethra. The kidneys filter blood to form urine via nephrons, which consist of a renal corpuscle and renal tubule. Urine passes from nephrons to the renal pelvis and ureters into the bladder, then exits via the urethra. The kidneys also regulate electrolytes and blood pressure by producing hormones like erythropoietin and renin.
The urinary system removes waste from the body via the kidneys, ureters, bladder, and urethra. The kidneys filter blood to form urine via nephrons, which consist of a renal corpuscle and renal tubule. Urine passes from nephrons to the renal pelvis and ureters into the bladder, then exits via the urethra. The kidneys also regulate electrolytes and blood pressure by producing hormones like erythropoietin and renin.
The urinary system consists of the kidneys, nephrons, ureters, urinary bladder, and urethra. The nephron is the functional unit of the kidney and is made up of the renal corpuscle and renal tubule. The renal corpuscle contains the glomerulus and Bowman's capsule, which filters the blood to form urine. The renal tubule is divided into the proximal convoluted tubule, loop of Henle, and distal convoluted tubule, where reabsorption and secretion of substances occurs to regulate water and electrolyte levels. The collecting ducts then collect the urine from multiple nephrons and excrete it from the body.
Structure of nephron and functions of its partsDuaShaban
The nephron is the structural and functional unit of the kidney that filters blood to form urine. It consists of a renal corpuscle containing the glomerulus and Bowman's capsule, and renal tubules. The glomerulus filters blood to form filtrate, which passes through three segments of the tubules - the proximal convoluted tubule, loop of Henle, and distal convoluted tubule. These tubule segments reabsorb essential substances and further concentrate the filtrate through selective reabsorption and secretion to produce urine and maintain electrolyte and pH balance.
The document summarizes key aspects of kidney function and structure. It defines excretion as the removal of waste from the body, like nitrogenous wastes from protein digestion. The kidney filters blood and reabsorbs necessary substances while excreting waste in urine. The kidney contains nephrons which filter blood in the glomerulus and reabsorb most water and nutrients back into blood along various portions of the nephron tubules. The loop of Henle and collecting duct help concentrate urine by establishing salt gradients. Urine composition differs from the original glomerular filtrate due to selective reabsorption of useful substances in the kidney.
1. The document describes the structure and function of the nephron, the basic structural and functional unit of the kidney. It details the two main parts of each nephron - the renal corpuscle and renal tubule.
2. The renal corpuscle includes the glomerulus, a capillary network, and Bowman's capsule, which encloses the glomerulus. The renal tubule consists of the proximal convoluted tubule, loop of Henle, and distal convoluted tubule.
3. Urine is formed through glomerular filtration, tubular reabsorption, and tubular secretion as fluid passes through the nephron. Most reabsorption occurs in the proximal convol
The urinary system removes waste from the body via the kidneys, ureters, bladder, and urethra. The kidneys filter blood to form urine via nephrons, which consist of a renal corpuscle and renal tubule. Urine passes from nephrons to the renal pelvis and ureters into the bladder, then exits via the urethra. The kidneys also regulate electrolytes and blood pressure by producing hormones like erythropoietin and renin.
The urinary system removes waste from the body via the kidneys, ureters, bladder, and urethra. The kidneys filter blood to form urine via nephrons, which consist of a renal corpuscle and renal tubule. Urine passes from nephrons to the renal pelvis and ureters into the bladder, then exits via the urethra. The kidneys also regulate electrolytes and blood pressure by producing hormones like erythropoietin and renin.
The current presentation includes the anatomy of nephron with neat labelled diagrams. The slide also includes the details of functions of each part of nephron.
The urinary system includes the kidneys, ureters, bladder, and urethra. The kidneys filter waste from the blood to produce urine. The ureters carry urine from the kidneys to the bladder. The bladder stores urine until urination, at which point urine passes through the urethra and out of the body. The kidneys, ureters, bladder, and urethra each have distinct tissue layers including mucosa, muscularis, and serosa that allow them to perform their specialized functions within the urinary system.
The document summarizes key aspects of excretion and the kidney's role in excretion and maintaining water balance. It describes the three main processes involved - ultrafiltration in the malpighian body, selective reabsorption in the proximal convoluted tubule, and urine formation in the loop of henle and collecting duct. It also outlines the structures of the nephron and kidney, and how different regions work together to filter and regulate blood content.
Cape biology unit 2-_the_kidney_and_osmoregulationHilton Ritch
The kidneys remove waste from the blood to form urine. They have an extensive blood supply so waste does not build up. Each kidney contains thousands of nephrons that filter blood to form urine in 5 steps: ultrafiltration, reabsorption, concentration in the loop of Henle, secretion in the distal tubule, and further concentration in the collecting duct. Hormones like ADH regulate water concentration to form either dilute or concentrated urine for excretion.
The document summarizes the structure and function of the nephron, the functional unit of the kidney. There are three main types of nephrons - cortical, juxtamedullary, and intermediate. The nephron consists of a glomerulus and renal tubule. The glomerulus is a tuft of capillaries surrounded by Bowman's capsule that filters the blood to form urine. The renal tubule reabsorbs useful solutes and secretes waste products to regulate water and electrolyte balance as the urine is formed and concentrated.
This document provides information about the nephron, which is the structural and functional unit of the kidney. It discusses the different types of nephrons, the anatomical divisions including the renal corpuscle and renal tubules. It describes the functions of the proximal convoluted tubule, loop of Henle, distal convoluted tubule and collecting duct in reabsorbing substances like water, ions and regulating acid-base balance. The nephron plays an important role in filtering blood to form urine and maintaining homeostasis in the body.
Excretory Products and their Elimination Class XI Biology Chapter 19.
Based on NCERT Class XI Biology Text book content.
Includes flowcharts and illustrations.
A nephron is the functional unit of the kidney responsible for filtering blood and forming urine. It consists of a renal corpuscle (containing the glomerulus and Bowman's capsule) and a renal tubule (composed of proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct). Blood is filtered in the glomerulus, and the filtrate travels through the tubules, where reabsorption and secretion processes occur to regulate electrolyte balance and fluid volume.
The document provides an overview of renal physiology and the structure and function of the kidney and nephron. It describes the kidney as a bean-shaped organ that filters blood to produce urine and removes wastes. The nephron is the functional unit of the kidney, consisting of a glomerulus and tubules (proximal convoluted tubule, loop of Henle, distal convoluted tubule and collecting duct) that work together to regulate water and electrolyte levels via selective reabsorption and secretion processes along different portions of the tubule. The loop of Henle plays a key role in concentrating urine by establishing an osmotic gradient in the kidney medulla.
Excretory Products And Their Elimination Class 11thNehaRohtagi1
Created By: NehaRohtagi1
Class 11th CBSE [NCERT]
Biology Chapter 17
Notes on the topic: Excretory Products And Their Elimination
For Class - 11th
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
Please give feedbacks and suggestions to get presentations on more interesting topics.
The document provides information about the excretory/renal system. It discusses the key parts of the system including the kidneys, ureters, bladder and urethra. The kidneys filter waste from the blood and regulate fluid levels and electrolyte balance. Key structures within the kidneys are described like nephrons, which are the functional filtering units. Processes like filtration, reabsorption and secretion are explained in how the kidneys form and regulate urine composition. Learning objectives are also outlined to characterize each part's role and illustrate the kidney's microscopic and macroscopic structures.
The kidney removes waste from the body through excretion. It contains a cortex and medulla, and is made up of functional units called nephrons. Nephrons contain a glomerulus for ultrafiltration of blood and a tubule for reabsorption of needed substances like water and glucose before urine is formed. The kidney regulates water balance through processes like reabsorption and the hormone ADH to concentrate or dilute urine as needed.
The urinary system functions to filter waste from the blood and regulate fluid levels. The kidneys contain nephrons, which are the functional filtering units. Each nephron contains a renal corpuscle with glomerulus for blood filtration, and a renal tubule for reabsorption and secretion. Filtrate passes through the glomerulus and along the tubule, where it is modified before collection in the ureters and storage in the bladder for excretion. The juxtaglomerular apparatus regulates blood pressure and fluid balance.
The document provides an overview of the urinary system anatomy and function. It lists the main organs of the urinary system as the kidneys, ureters, bladder, and urethra. It describes the location of the kidneys and discusses the nephrons as the functional units of the kidney. It also summarizes key processes in the nephron including filtration, reabsorption, and concentration of urine.
The document provides an overview of kidney anatomy and physiology. It discusses:
1. The basic functions and structures of the kidney, including filtration, homeostasis, and hormone production.
2. The anatomy of the kidney, including locations of the cortex, medulla, renal pyramids and other structures.
3. The nephron as the functional unit of the kidney, describing its role in filtration, reabsorption, secretion and other processes.
4. Key physiological concepts like the countercurrent multiplier mechanism and regulation of electrolytes and acid-base balance.
The document provides an overview of kidney anatomy and physiology. It describes the key functions of the kidney which include excretion of wastes, regulation of water and electrolyte balance, and hormone production. The basic functional unit of the kidney, the nephron, is explained in detail. The nephron is responsible for filtering blood to form urine via processes like glomerular filtration, reabsorption and secretion. The countercurrent multiplier system involving the loop of Henle is also described, which helps concentrate urine.
The document describes the physiology and functional anatomy of the kidney. It discusses how the kidney filters blood in the glomerulus and nephron, and then reabsorbs and secretes substances through tubules to regulate water, electrolyte and acid-base balance and produce urine. Specifically, it notes that the endothelial wall of the glomerulus has fenestrations that prevent large molecules like proteins from escaping into the filtrate. Through processes like bicarbonate reabsorption, the urine is typically acidic. The kidney maintains electrolyte balance through selective reabsorption and secretion in the tubules.
This document provides an overview of the human excretory system presented in a lecture by K. P. Komal, Assistant Professor of Biochemistry. It describes the key components of the excretory system including the kidneys, ureters, bladder, and urethra. It explains their functions in removing waste from the body through urine production via a process involving glomerular filtration, reabsorption, and secretion along the nephron tubule in the kidneys. The kidneys regulate blood volume, pressure, and ion and waste concentrations to maintain homeostasis.
The urinary system consists of the kidneys, ureters, urinary bladder, and urethra. The kidneys filter the blood and produce urine, which travels through the ureters into the bladder. When the bladder fills, urine is excreted through the urethra. The kidneys regulate water and ion levels in the blood and remove wastes via specialized nephrons that filter the blood, reabsorb necessary components, and produce urine for excretion.
The document summarizes renal physiology and kidney function. The kidney maintains homeostasis by precisely regulating the balance of water, electrolytes, and other substances in the body through filtration, reabsorption, and secretion. Key functions include regulating fluid volume and composition, electrolyte levels, and excretion of wastes while conserving essential nutrients. These processes occur along the functional units of the kidney called nephrons.
This document defines and describes esophageal atresia with tracheo-esophageal fistula (EA/TEF), including the different types, clinical features, diagnosis, and medical, surgical, and nursing management. EA/TEF is a birth defect where the esophagus fails to connect to the stomach and an abnormal passage forms between the trachea and esophagus. It discusses the surgical repair of EA/TEF and the postoperative nursing care required, including respiratory support, feeding management, and parental education.
The document outlines the key steps to conducting a literature review: reading background materials and critically analyzing sources, taking notes and summarizing sources, organizing findings into common themes, and comparing and contrasting different perspectives. It also discusses developing a research topic and questions, searching the literature using relevant terms and databases, and synthesizing findings across multiple sources to identify gaps for further research. The overall process is iterative and involves continually refining searches and organizing collected information.
The current presentation includes the anatomy of nephron with neat labelled diagrams. The slide also includes the details of functions of each part of nephron.
The urinary system includes the kidneys, ureters, bladder, and urethra. The kidneys filter waste from the blood to produce urine. The ureters carry urine from the kidneys to the bladder. The bladder stores urine until urination, at which point urine passes through the urethra and out of the body. The kidneys, ureters, bladder, and urethra each have distinct tissue layers including mucosa, muscularis, and serosa that allow them to perform their specialized functions within the urinary system.
The document summarizes key aspects of excretion and the kidney's role in excretion and maintaining water balance. It describes the three main processes involved - ultrafiltration in the malpighian body, selective reabsorption in the proximal convoluted tubule, and urine formation in the loop of henle and collecting duct. It also outlines the structures of the nephron and kidney, and how different regions work together to filter and regulate blood content.
Cape biology unit 2-_the_kidney_and_osmoregulationHilton Ritch
The kidneys remove waste from the blood to form urine. They have an extensive blood supply so waste does not build up. Each kidney contains thousands of nephrons that filter blood to form urine in 5 steps: ultrafiltration, reabsorption, concentration in the loop of Henle, secretion in the distal tubule, and further concentration in the collecting duct. Hormones like ADH regulate water concentration to form either dilute or concentrated urine for excretion.
The document summarizes the structure and function of the nephron, the functional unit of the kidney. There are three main types of nephrons - cortical, juxtamedullary, and intermediate. The nephron consists of a glomerulus and renal tubule. The glomerulus is a tuft of capillaries surrounded by Bowman's capsule that filters the blood to form urine. The renal tubule reabsorbs useful solutes and secretes waste products to regulate water and electrolyte balance as the urine is formed and concentrated.
This document provides information about the nephron, which is the structural and functional unit of the kidney. It discusses the different types of nephrons, the anatomical divisions including the renal corpuscle and renal tubules. It describes the functions of the proximal convoluted tubule, loop of Henle, distal convoluted tubule and collecting duct in reabsorbing substances like water, ions and regulating acid-base balance. The nephron plays an important role in filtering blood to form urine and maintaining homeostasis in the body.
Excretory Products and their Elimination Class XI Biology Chapter 19.
Based on NCERT Class XI Biology Text book content.
Includes flowcharts and illustrations.
A nephron is the functional unit of the kidney responsible for filtering blood and forming urine. It consists of a renal corpuscle (containing the glomerulus and Bowman's capsule) and a renal tubule (composed of proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct). Blood is filtered in the glomerulus, and the filtrate travels through the tubules, where reabsorption and secretion processes occur to regulate electrolyte balance and fluid volume.
The document provides an overview of renal physiology and the structure and function of the kidney and nephron. It describes the kidney as a bean-shaped organ that filters blood to produce urine and removes wastes. The nephron is the functional unit of the kidney, consisting of a glomerulus and tubules (proximal convoluted tubule, loop of Henle, distal convoluted tubule and collecting duct) that work together to regulate water and electrolyte levels via selective reabsorption and secretion processes along different portions of the tubule. The loop of Henle plays a key role in concentrating urine by establishing an osmotic gradient in the kidney medulla.
Excretory Products And Their Elimination Class 11thNehaRohtagi1
Created By: NehaRohtagi1
Class 11th CBSE [NCERT]
Biology Chapter 17
Notes on the topic: Excretory Products And Their Elimination
For Class - 11th
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
Please give feedbacks and suggestions to get presentations on more interesting topics.
The document provides information about the excretory/renal system. It discusses the key parts of the system including the kidneys, ureters, bladder and urethra. The kidneys filter waste from the blood and regulate fluid levels and electrolyte balance. Key structures within the kidneys are described like nephrons, which are the functional filtering units. Processes like filtration, reabsorption and secretion are explained in how the kidneys form and regulate urine composition. Learning objectives are also outlined to characterize each part's role and illustrate the kidney's microscopic and macroscopic structures.
The kidney removes waste from the body through excretion. It contains a cortex and medulla, and is made up of functional units called nephrons. Nephrons contain a glomerulus for ultrafiltration of blood and a tubule for reabsorption of needed substances like water and glucose before urine is formed. The kidney regulates water balance through processes like reabsorption and the hormone ADH to concentrate or dilute urine as needed.
The urinary system functions to filter waste from the blood and regulate fluid levels. The kidneys contain nephrons, which are the functional filtering units. Each nephron contains a renal corpuscle with glomerulus for blood filtration, and a renal tubule for reabsorption and secretion. Filtrate passes through the glomerulus and along the tubule, where it is modified before collection in the ureters and storage in the bladder for excretion. The juxtaglomerular apparatus regulates blood pressure and fluid balance.
The document provides an overview of the urinary system anatomy and function. It lists the main organs of the urinary system as the kidneys, ureters, bladder, and urethra. It describes the location of the kidneys and discusses the nephrons as the functional units of the kidney. It also summarizes key processes in the nephron including filtration, reabsorption, and concentration of urine.
The document provides an overview of kidney anatomy and physiology. It discusses:
1. The basic functions and structures of the kidney, including filtration, homeostasis, and hormone production.
2. The anatomy of the kidney, including locations of the cortex, medulla, renal pyramids and other structures.
3. The nephron as the functional unit of the kidney, describing its role in filtration, reabsorption, secretion and other processes.
4. Key physiological concepts like the countercurrent multiplier mechanism and regulation of electrolytes and acid-base balance.
The document provides an overview of kidney anatomy and physiology. It describes the key functions of the kidney which include excretion of wastes, regulation of water and electrolyte balance, and hormone production. The basic functional unit of the kidney, the nephron, is explained in detail. The nephron is responsible for filtering blood to form urine via processes like glomerular filtration, reabsorption and secretion. The countercurrent multiplier system involving the loop of Henle is also described, which helps concentrate urine.
The document describes the physiology and functional anatomy of the kidney. It discusses how the kidney filters blood in the glomerulus and nephron, and then reabsorbs and secretes substances through tubules to regulate water, electrolyte and acid-base balance and produce urine. Specifically, it notes that the endothelial wall of the glomerulus has fenestrations that prevent large molecules like proteins from escaping into the filtrate. Through processes like bicarbonate reabsorption, the urine is typically acidic. The kidney maintains electrolyte balance through selective reabsorption and secretion in the tubules.
This document provides an overview of the human excretory system presented in a lecture by K. P. Komal, Assistant Professor of Biochemistry. It describes the key components of the excretory system including the kidneys, ureters, bladder, and urethra. It explains their functions in removing waste from the body through urine production via a process involving glomerular filtration, reabsorption, and secretion along the nephron tubule in the kidneys. The kidneys regulate blood volume, pressure, and ion and waste concentrations to maintain homeostasis.
The urinary system consists of the kidneys, ureters, urinary bladder, and urethra. The kidneys filter the blood and produce urine, which travels through the ureters into the bladder. When the bladder fills, urine is excreted through the urethra. The kidneys regulate water and ion levels in the blood and remove wastes via specialized nephrons that filter the blood, reabsorb necessary components, and produce urine for excretion.
The document summarizes renal physiology and kidney function. The kidney maintains homeostasis by precisely regulating the balance of water, electrolytes, and other substances in the body through filtration, reabsorption, and secretion. Key functions include regulating fluid volume and composition, electrolyte levels, and excretion of wastes while conserving essential nutrients. These processes occur along the functional units of the kidney called nephrons.
This document defines and describes esophageal atresia with tracheo-esophageal fistula (EA/TEF), including the different types, clinical features, diagnosis, and medical, surgical, and nursing management. EA/TEF is a birth defect where the esophagus fails to connect to the stomach and an abnormal passage forms between the trachea and esophagus. It discusses the surgical repair of EA/TEF and the postoperative nursing care required, including respiratory support, feeding management, and parental education.
The document outlines the key steps to conducting a literature review: reading background materials and critically analyzing sources, taking notes and summarizing sources, organizing findings into common themes, and comparing and contrasting different perspectives. It also discusses developing a research topic and questions, searching the literature using relevant terms and databases, and synthesizing findings across multiple sources to identify gaps for further research. The overall process is iterative and involves continually refining searches and organizing collected information.
- Burns are a leading cause of injury in children, with scalds being the most common type especially in young children. Thorough history is important to identify potential abuse.
- Early management focuses on stopping the burning process, assessing airway status, estimating burn size, starting fluid resuscitation, and providing pain control. Large or full thickness burns may require inpatient care.
- Fluid resuscitation follows the Parkland formula to replace losses and maintain circulation. Ongoing wound care aims to prevent infection while the burns heal. Inhalation injuries require careful monitoring and pulmonary support.
FALL RISK ASSESSMENT&PREVENTION -IPSG.pptxbhavanibb
Falls are a serious risk for older patients. This document discusses assessing patients' risk of falling and implementing prevention strategies to reduce injuries. It focuses on evaluating factors like gait and balance issues, medications, vision problems and more to determine a patient's risk and tailor safety measures accordingly.
Otitis media is an inflammation of the middle ear that commonly affects children under 10 years old. It can be caused by bacteria like Streptococcus pneumoniae or viruses. Common symptoms include ear pain, fever, hearing loss, and discharge from the ear. Without treatment, complications can include mastoiditis, cholesteatoma, meningitis, and permanent hearing loss. Diagnosis is usually based on examination of the eardrum. Treatment involves antibiotics, analgesics, and occasionally surgery to drain the ear or place tubes. Nursing care focuses on pain management, communication strategies due to hearing loss, and ensuring complete treatment to prevent recurrence.
This document discusses pediatric gastroesophageal reflux disease (GERD). It begins by describing the physiology of gastric acid secretion and regulation. It then discusses acid peptic disease and the factors that can increase or decrease acidity. The document defines GER and GERD in children and lists potential causes. Symptoms of GERD in children are provided, as well as diagnostic approaches. Treatment options for pediatric GERD include lifestyle modifications, pharmacological therapies like acid suppressants, and surgical treatment. Ranitidine is discussed as the first line pharmacological therapy due to its efficacy and safety profile in children.
The document discusses codes of ethics and professional conduct for nurses. It begins by defining a code of ethics and outlining its purposes. It then discusses the International Council of Nurses' code of ethics, which establishes standards of conduct in four elements: nurses and people, nurses and practice, nurses and the profession, and nurses and co-workers. The document also outlines the Indian Nursing Council's code of ethics and code of professional conduct, which provide guidance on ethical nursing practice and responsibilities in India.
Hepatoblastoma is a rare liver tumor that affects children under 3 years old. It starts as a golf ball-sized tumor in the right lobe of the liver. Genetic disorders like Beckwith-Wiedemann syndrome and familial adenomatous polyposis can cause hepatoblastoma. Symptoms include abdominal swelling, weight loss, and jaundice. Treatment depends on the stage - early stage tumors can be surgically removed while later stages involve chemotherapy and then surgery. Without treatment, stage 4 hepatoblastoma is fatal.
The somatomotor system is organized in a 3-tier hierarchical system, with the highest level in the cerebral cortex, middle level in subcortical structures like the basal ganglia and cerebellum, and lowest level in the spinal cord and brainstem. The motor cortex plans voluntary movements and issues commands to the spinal cord via pyramidal tracts. Basal ganglia and cerebellum help coordinate skilled movements and maintain posture and tone. Spinal motor neurons innervate skeletal muscles to enable movement. Proprioceptive feedback integrates signals across these levels of the motor system.
Intussusception is the telescoping of the proximal bowel into the distal bowel. It is most common in children under 2 years old and presents with intermittent abdominal pain, a palpable abdominal mass ("sausage-shaped"), and bloody stools. Ultrasound is the primary diagnostic tool, showing a target or doughnut sign. Treatment involves rehydration, antibiotics if infected, and non-operative reduction initially with air or barium enema. Surgery is needed if reduction fails or there is perforation with resection and anastomosis. Complications can include necrosis, perforation, sepsis but mortality is low (less than 1%) with prompt diagnosis and treatment.
This document discusses the importance of food safety and sanitation in child care settings. Foodborne illness poses a high risk to young children as their immune systems are still developing. Proper hygiene, food handling, storage, preparation, and cleaning/sanitation practices are essential to prevent contamination and the growth of bacteria. Key steps include washing hands frequently, avoiding bare hand contact with ready-to-eat foods, properly storing and cooking foods, and using a sanitizing solution to clean surfaces. Maintaining high standards of cleanliness helps protect children's health.
1) The physiology of gastric acid secretion involves parietal cells in the stomach secreting hydrochloric acid in response to histamine, gastrin, and muscarinic receptors. This acid helps with digestion but can also cause damage.
2) Gastroesophageal reflux disease (GERD) occurs when gastric contents reflux into the esophagus or oropharynx and produce symptoms like vomiting or regurgitation. It is common in infants but considered a disease if it causes other issues.
3) Treatment involves lifestyle changes like feeding position and diet, as well as pharmacological options like H2 blockers and proton pump inhibitors to reduce acid and prevent complications of reflux. Diagnosis involves
Diphtheria is caused by Corynebacterium diphtheriae which produces a toxin. It usually infects the throat causing a gray membrane. The toxin can also damage distant organs. It is spread through respiratory droplets or contaminated objects from cases or carriers. Children aged 1-5 are most susceptible. Immunization with DPT vaccine is effective for prevention.
This document discusses pediatric kidney transplantation, including its history, indications, recipient and donor evaluation processes, surgical procedure, immunosuppression regimens, complications, and long-term management. Key points include: the first successful human kidney transplant was in 1950; recipients must not have active infection or malignancy; living donors are preferred when possible; tissue typing and crossmatching are important; immunosuppression involves induction agents, steroids, calcineurin inhibitors, and other drugs; and complications can include rejection, infection, graft failure, and malignancy. Long-term follow up is needed to monitor graft function and patient health.
Usman, age 7, presented with pallor, fatigue, and bruising. His blood tests showed very low red blood cell, white blood cell, and platelet counts consistent with aplastic anemia. Aplastic anemia causes bone marrow failure resulting in pancytopenia. Treatment options include blood transfusions, growth factors, antibiotics, and immunosuppressive drugs or stem cell transplantation to restore bone marrow function.
Oxygen inhalation involves providing supplemental oxygen to patients with low blood oxygen levels. It treats hypoxemia and relieves symptoms caused by oxygen deficiency, though it does not address underlying causes. The main purposes of oxygen inhalation are to manage hypoxia and maintain adequate oxygen tension and oxygenated hemoglobin in the blood. Common indications include cyanosis, breathlessness, anemia, and conditions affecting oxygen utilization like pneumonia. Proper administration requires an oxygen source, delivery devices, a humidifier and flow meter. Methods include nasal catheters, masks, and tents. Complications can include infection, drying, combustion, oxygen toxicity, and lung damage in premature infants. Close monitoring and safety precautions are important when providing
Acute renal failure in children is defined as a sudden deterioration in renal function resulting in the inability to maintain fluid and electrolyte homeostasis. It can be classified as pre-renal, intrinsic renal, or post-renal. Common causes include dehydration, infections, nephrotoxins, and obstructions. Symptoms include decreased urine output, edema, and mental changes. Treatment involves fluid resuscitation, electrolyte management, dialysis for complications like hyperkalemia, and treating the underlying cause. The prognosis depends on the cause, with acute tubular necrosis having a 90% complete remission rate.
This document discusses ethical concepts in nursing including values, morals, ethics and their influence on nursing practice. It defines key terms like values, morals and ethics and how they relate to behavior. It outlines theories of moral development including Kohlberg and Gilligan's approaches. The document also discusses moral distress, outrage and principles of ethics like autonomy, beneficence and justice. It compares teleological and deontological ethical theories and the purpose of nursing codes of ethics in guiding practice. Finally, it identifies factors that influence ethical decision making for nurses.
Neuroglia, or glial cells, are the supporting cells of the nervous system. There are two main types: neurons, which are excitable and generate electrical signals, and neuroglial cells, which are nonexcitable and serve supporting functions. Neuroglial cells outnumber neurons 10 to 1 and perform roles like forming myelin, regulating the brain's environment, and aiding neuronal repair. The four major glial cell types in the central nervous system are astrocytes, microglia, ependymal cells, and oligodendrocytes. Astrocytes help form the blood-brain barrier and regulate synaptic transmission, while microglia act as immune cells that remove debris. Oligodendrocy
Typhoid fever is caused by the bacterium Salmonella typhi. It is transmitted through the fecal-oral route by ingesting food or water contaminated by the feces or urine of infected individuals. Clinical features include a sustained high fever over 2-3 weeks along with relative bradycardia and abdominal tenderness. Diagnosis is confirmed through blood or stool cultures. Treatment involves antibiotics such as fluoroquinolones. Control relies on identifying and treating carriers, improving sanitation and access to clean water, and administering vaccines to at-risk populations.
Does Over-Masturbation Contribute to Chronic Prostatitis.pptxwalterHu5
In some case, your chronic prostatitis may be related to over-masturbation. Generally, natural medicine Diuretic and Anti-inflammatory Pill can help mee get a cure.
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5-hydroxytryptamine or 5-HT or Serotonin is a neurotransmitter that serves a range of roles in the human body. It is sometimes referred to as the happy chemical since it promotes overall well-being and happiness.
It is mostly found in the brain, intestines, and blood platelets.
5-HT is utilised to transport messages between nerve cells, is known to be involved in smooth muscle contraction, and adds to overall well-being and pleasure, among other benefits. 5-HT regulates the body's sleep-wake cycles and internal clock by acting as a precursor to melatonin.
It is hypothesised to regulate hunger, emotions, motor, cognitive, and autonomic processes.
- Video recording of this lecture in English language: https://youtu.be/Pt1nA32sdHQ
- Video recording of this lecture in Arabic language: https://youtu.be/uFdc9F0rlP0
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
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8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptxHolistified Wellness
We’re talking about Vedic Meditation, a form of meditation that has been around for at least 5,000 years. Back then, the people who lived in the Indus Valley, now known as India and Pakistan, practised meditation as a fundamental part of daily life. This knowledge that has given us yoga and Ayurveda, was known as Veda, hence the name Vedic. And though there are some written records, the practice has been passed down verbally from generation to generation.
Cell Therapy Expansion and Challenges in Autoimmune DiseaseHealth Advances
There is increasing confidence that cell therapies will soon play a role in the treatment of autoimmune disorders, but the extent of this impact remains to be seen. Early readouts on autologous CAR-Ts in lupus are encouraging, but manufacturing and cost limitations are likely to restrict access to highly refractory patients. Allogeneic CAR-Ts have the potential to broaden access to earlier lines of treatment due to their inherent cost benefits, however they will need to demonstrate comparable or improved efficacy to established modalities.
In addition to infrastructure and capacity constraints, CAR-Ts face a very different risk-benefit dynamic in autoimmune compared to oncology, highlighting the need for tolerable therapies with low adverse event risk. CAR-NK and Treg-based therapies are also being developed in certain autoimmune disorders and may demonstrate favorable safety profiles. Several novel non-cell therapies such as bispecific antibodies, nanobodies, and RNAi drugs, may also offer future alternative competitive solutions with variable value propositions.
Widespread adoption of cell therapies will not only require strong efficacy and safety data, but also adapted pricing and access strategies. At oncology-based price points, CAR-Ts are unlikely to achieve broad market access in autoimmune disorders, with eligible patient populations that are potentially orders of magnitude greater than the number of currently addressable cancer patients. Developers have made strides towards reducing cell therapy COGS while improving manufacturing efficiency, but payors will inevitably restrict access until more sustainable pricing is achieved.
Despite these headwinds, industry leaders and investors remain confident that cell therapies are poised to address significant unmet need in patients suffering from autoimmune disorders. However, the extent of this impact on the treatment landscape remains to be seen, as the industry rapidly approaches an inflection point.
Promoting Wellbeing - Applied Social Psychology - Psychology SuperNotesPsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Osteoporosis - Definition , Evaluation and Management .pdfJim Jacob Roy
Osteoporosis is an increasing cause of morbidity among the elderly.
In this document , a brief outline of osteoporosis is given , including the risk factors of osteoporosis fractures , the indications for testing bone mineral density and the management of osteoporosis
2. Introduction
“Nephron is the basic structural &
functional unit of kidney which helps
in formation of urine.
The word nephron is derived from
the Greek word – nephros, meaning
kidney. There are about millions of
nephrons in each human kidney.
3.
4. Types of Nephron
There are two types of nephron on the
basis of location):
Cortical (found in cortex
region)
Nephron
Juxtamedullary (found in
medulla region)
5. 1. Cortical nephron:
These are the nephrons present within the
cortex. These are short and is about 80% of
the total nephrons.
Here, vasa recta is not present.
2. Juxtamedullary nephron:
These extend into the medulla. These are about
20%.
Here, vasa recta is present.
Note: The vasa recta, the capillary networks
that supply blood to the medulla. Vasa means
vessels & recta means erect or straight. Means
straight blood vessels or blood veseels that go
straight with renal medulla.
7. Anatomy of Nephron
It is a long tube-like structure, its length varies
from 35–55 mm long.
The structure of nephron comprises two major
portions:
A. Renal Corpuscle
B. Renal Tubule
At one end, the tube is closed, folded and expanded,
into a cuplike structure called the Bowman’s capsule
or renal corpuscular capsule, which has cluster of
blood vessels called the glomerulus.
This capsule and glomerulus together constitute the
renal corpuscle.
Renal corpuscle = Bowman’s capsule + Glomerules
8.
9. Renal Corpuscle
It consist of glomerulus surrounded by a Bowman’s
capsule.
The glomerulus arises from an afferent arteriole
and empties into an efferent arteriole.
The Bowman’s capsule is made up of simple sqamous
epithelial cells & divided into three layers:
A. Outer (Parietal layer): It is made up of epithelial
cells with minute pores of diameter 12nm.
B. Middle (Basement membrane): It is made up of
fibrils etc. This layer is selectively permeable.
C. Inner (Visceral Layer:) It consists of large cells
called podocytes which bear finger-like projections
called podocel. Podocytes are covering of
glomerules It contains filtration slits which
prevents the filtration of medium sized proteins.
10.
11. Renal Tubule
The renal tubule is a long and convoluted structure
that emerges from the glomerulus and can be
divided into three parts based on function:
A. The proximal convoluted tubule (PCT) due to its
proximity to the glomerulus; it stays in the
renal cortex.
B. loop of Henle, or nephritic loop because it
forms a loop (with descending and ascending
limbs) that goes through the renal medulla.
C. The third part of the renal tubule is called the
distal convoluted tubule (DCT) and this part is
also restricted to the renal cortex.
Bowman’s capsule extends to form highly coiled
tubules called PCT. PCT continues to form the loop
of Henle which ascends to DCT, which in turn opens
into the collecting duct.
12. Proximal Convoluted Tubule
(PCT)
The blood brought by the renal artery is filtered
by the glomerulus and then passed to the PCT.
Maximum reabsorption takes place in PCT of the
nephron.
PCT is the region of renal tubule where
reabsorption of essential substances like glucose,
proteins, amino acids, a major portion of
electrolytes and water takes place.
It is made up of simple cuboidal epithelium in
them. It selectively secretes ions such as
hydrogen, ammonia, and potassium into the
3
filtrate and absorbs HCO –from it. Thus, PCT
maintains the electrolyte and acid-base balance of
13. Henle’s Loop
and an
Henle’s loop has a descending
ascending limb.
Both the descending and ascending limbs
show different permeability. The
descending limb is permeable to water but
impermeable to an electrolyte, while the
ascending limb is permeable to
electrolytes but impermeable to water.
Since the electrolytes get reabsorbed at
the ascending loop of Henle, the filtrate
gets diluted as it moves towards the
14. Distal Convoluted Tubule (DCT)
The DCT, which is the last part of the
nephron, connects and empties its contents
into collecting ducts that line the medullary
pyramids. The collecting ducts amass contents
from multiple nephrons and fuse together as
they enter the papillae of the renal medulla.
Similar to PCT, DCT also secretes ions such as
hydrogen, potassium, and NH3 into the
3
filtrate while reabsorbing the HCO –from the
filtrate. Conditional reabsorption of sodium
ions and water takes place in DCT. Thus, it
maintains the pH and sodium-potassium level
in the blood cells.
15. Col ecting Duct
It is also called as duct of Bellini.
Collecting duct is a long, straight tube
where H+ and K+ ions are secreted to
maintain the electrolyte balance of the
blood. This is also the region where the
maximum reabsorption of water takes
place to produce concentrated urine.
16. Functions of Nephron
It convertes blood into the
urine, reabsorption, secretion, and
excretion of numerous substances.
To remove all waste products including the
solid wastes, and other excess water from
the blood,
As the blood passes through the glomerulus
with high pressure, the small molecules are
moved into the glomerular capsules
and travel through a series of tubules.
The cell present in each tube absorbs
different molecules excluding the glucose,
water, and other beneficial molecules
19. Activity Time
Label the structures of nephron with the help of given
hints:
Max. Time: 3 min.
20. Question Time
1. and
are known as the renal corpuscle.
A. Bowman's Capsule and Renal Cortex
B. Glomerulus and Bowman's Capsule
C. Loop of Henle and Renal Medulla
D.Proximal Convoluted Duct and Distal
Convoluted Duct
21. 2.Which part of the Loop of Henle is
ONLY permeable to water?
A. Descending Limb
B. Transverse Limb
C. Ascending Limb
22. 3. Which part of the renal tubule
performs the “final touches” on the
filtrate before it leaves the kidney as
urine?
A. Collecting Tubule/Duct
B. Renal Papilla
C. Loop of Henle
D. Distal Convoluted Tubule
23. 4. Which parts of the nephron are found
in the renal medulla of the kidney?
A.Proximal Convoluted Tubule and Distal
Convoluted Tubule
B.Loop of Henle and Distal Convoluted
Tubule
C. Loop of Henle and Collecting Tubule
D.Loop of Henle (except the descending
limb) and Distal Convoluted Tubule
24. 5.Blood flows out of the glomerulus via
the:
A. Afferent arteriole
B. Capillaries
C. Vasa Recta
D. Efferent arteriole