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Urinary System lecture slides
- 1. Terminology in Healthcare and Public Health Settings Urinary System This material (Comp 3 Unit 12) was developed by the University of Alabama at Birmingham, funded by the Department of Health and Human Services, Office of the National Coordinator for Health Information Technology under Award Number 90WT0007. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org.
- 2. Urinary System Learning Objectives • Define, understand and correctly pronounce medical terms related to the urinary system • Describe common diseases and conditions with an overview of various treatments related to the urinary system 2
- 3. Urinary System Anatomy • Kidneys • Ureters • Urinary Bladder • Urethra 3
- 4. Kidneys • Functions – Elimination of organic waste – Regulation of o Homeostasis o Acid-base balance o Red blood cell production o Blood pressure – Elimination of toxic substances 4
- 5. Bladder Diseases – Cystitis – Urinary tract infection – Urinary incontinence – Interstitial cystitis • Diagnostic tests – Urine tests – X-rays – Cystoscopy • Treatment – Medications – Surgery 5
- 6. Bladder Cancer • Location – Lining of the bladder • Sixth most common type of cancer in US • Risk Factors • Symptoms • Treatment – Surgery – Radiation – Chemotherapy – Biologic Therapy (immunotherapy) 6
- 7. Kidney Stones • Also called nephrolithiasis • Symptoms – Back or side pain that won’t go away – Blood in the urine – Fever and chills – Vomiting – Urine that smells bad or looks cloudy – Burning pain when urinating 7
- 8. Kidney Stones 2 • Diagnostic tests – Intravenous pyelogram • Treatment – Lithotripsy o Extracorporeal shock wave lithotripsy (ESWL) 8
- 9. Diseases and Disorders of the Kidney • Kidney Damage – Risk Factors o Diabetes (Diabetic nephropathy) o High blood pressure o Family history of disease • Kidney Failure – End-stage renal disease (ESRD) – Renal failure 9
- 10. Diseases and Disorders of the Kidney 2 • Wilms Tumor – Nephroblastoma – Affects children – Curable • Symptoms – Lump in the abdomen – Blood in the urine • Treatment – Surgery – Chemotherapy/Radiation – Biologic therapy 10
- 11. Diseases and Disorders of the Kidney 3 • Treatment for Renal Failure – Dialysis o Hemodialysis o Peritoneal dialysis – Kidney Transplantation o Most common transplants o Sources of transplants Living related donor Living unrelated donor Deceased donor 11
- 12. Diseases and Disorders of the Kidney 4 • Renal Cancer – Location – Risk Factors – Symptoms o Blood in the urine o Lump in the abdomen o Unexplained weight loss o Side pain o Loss of appetite 12
- 13. Diseases and Disorders of the Kidney 5 • Renal Cancer – Treatment o Surgery o Radiation o Chemotherapy o Biologic therapy 13
- 14. Urinary System Combining Forms Key Word Forms Meaning Sample Term Cyst/o Bladder Cystoscopy Lith/o Stone Lithotripsy Meat/o Meatus Meatotomy Nephr/o Kidney Nephritis Ren/o Renal Renography Ureter/o Ureter Ureterectomy Urethro/o Urethra Urethritis 14
- 15. Tell me, Detective . . . • An elderly white male presented to his family practitioner complaining of blood in his urine. After evaluation and testing, he was diagnosed with bladder cancer. What are the therapies or treatments the family practitioner should discuss with the patient? 15
- 16. Urinary System Summary • Define, explain and correctly pronounce medical terms related to the urinary system • Describe common diseases and conditions with an overview of various treatments related to the urinary system 16
- 17. Urinary System References References MedlinePlus [Internet]. Kidneys and urinary system. Bethesda (MD): National Library of Medicine (US); [updated 2011 Jul 27]. Available from: www.nlm.nih.gov Images Slide 3: 2 & CC BY & CC BY-SA Available From: commons.wikimedia.org 17
- 18. Terminology in Health Care and Public Health Settings Urinary System This material was developed by the University of Alabama at Birmingham, funded by the Department of Health and Human Services, Office of the National Coordinator for Health Information Technology under Award Number 90WT0007. 18
Editor's Notes
- Welcome to Terminology in Healthcare and Public Health Settings, Urinary System. In this unit, we will focus on the urinary system.
- The objectives of this unit, Urinary System, are to: Define, understand and correctly pronounce medical terms related to the urinary system. Describe common diseases and conditions with an overview of various treatments related to the urinary system.
- Let’s start our study of the urinary system with a look at the relevant anatomy. As you probably know, the primary function of the urinary system is to maintain the volume and levels of body fluids within normal limits. It does this in part by excreting waste. The urinary system, illustrated in the diagram, consists of two kidneys, two ureters (pronounced your-ritters), the urinary bladder, and the urethra (pronounced you-wreath-ruh). The kidneys are bean-shaped organs, each about the size of your fist. They are located near the middle of the back, just below the rib cage. Inside each kidney, there are about a million tiny structures called nephrons (pronounced neff-rons) which filter blood. They remove waste products and extra water, which become urine. The urine flows through tubes called ureters. Urine goes through the ureters to the bladder, which stores the urine until it is passed through the urethra. The urethra is a canal extending from the bladder to the outside of the body.
- The kidney has several important functions that include: the elimination of organic waste, the regulation of homeostasis (pronounced home-ee-oh-STAY-sis) in the body, the regulation of the body’s acid-base balance, the regulation of red blood cell production, and the regulation of blood pressure. The kidneys also have some influence over blood glucose and blood amino acids. In addition, they are instrumental in the elimination of toxic substances, and they act as endocrine glands. It is important to remember that, although the urinary system has a major role in excretion, there are other organs that assist in the excretion of waste products. Two good examples of this are the lungs, which serve to rid the body of carbon dioxide and water, and the skin, which excretes waste through the sweat glands. A third example is the liver which contains specialized cells that are important in the metabolism of proteins, carbohydrates and fats. The liver also contributes to the elimination of waste products that are produced through the metabolic processes.
- The bladder is a hollow organ in your lower abdomen that stores urine. Some of the common conditions that can affect bladder function are identified in this slide. Cystitis (pronounced sis-tight-iss) is an infection in the urinary bladder. Acute cystitis occurs when the lower urinary tract (the urethra and bladder) become infected by bacteria called E coli, which are bacteria commonly found in the intestine. Cystitis is rare in men. Urinary tract infections, also known as “UTIs,” (pronounced U-T-I’s) are the second most common type of infection in the body. Symptoms include: pain or burning when urinating, fever, tiredness or shakiness, urinary frequency (or the urge to use the bathroom often), pressure in your lower belly, urine that smells bad or looks cloudy or reddish, and sometimes nausea or back pain. Treatments include medications. Urinary incontinence refers to the loss of bladder control. Interstitial (pronounced inter-stish-uhl) cystitis is a chronic problem in which the bladder wall can become inflamed and irritated, leading to frequent, painful urination. Diagnostic tests include urine tests, x-rays and examination of the bladder wall with a device called a cystoscope (pronounced sis-toe-scope). Treatment varies depending on the cause of the problem. It may include medications and, in severe cases, surgery.
- Bladder cancer occurs in the lining of the bladder. It is the sixth most common type of cancer in the US. There are several risk factors for developing bladder cancer. These include smoking, exposure to chemicals in the workplace, and a family history of bladder cancer. You are more likely to get bladder cancer if you are an older, white male. Symptoms of bladder cancer include: low back pain, blood in your urine, painful urination and needing to frequently empty your bladder (which is called “urinary frequency”). Treatments for bladder cancer include surgery, radiation, chemotherapy and biological therapy. Biological therapies use the body's own immune system, either directly or indirectly, to fight cancer or to lessen the side effects that may be caused by some cancer treatments.
- A kidney stone is a solid piece of material that forms in the kidney from substances in the urine. It may be as small as a grain of sand or as large as a pearl. Most kidney stones pass out of the body without assistance from a physician. But sometimes medical intervention is necessary when the stone blocks the flow of urine and causes great pain. If you have a kidney stone, your symptoms might include: extreme pain in your back or side that will not go away, blood in your urine, fever and chills, vomiting, urine that smells bad or looks cloudy, and burning when urinating. This condition is called nephrolithiasis (pronounced neff-ro-lith-eye-uh-sis).
- The diagnosis of a kidney stone can be assisted through the use of an intravenous pyelogram (pronounced pile-low-gram) or IVP (pronounced I-V-P), which is an x-ray examination of the kidneys, ureters and urinary bladder that uses contrast material injected into the veins. The treatment for kidney stones may involve lithotripsy, (pronounced lith-oh-trip-see) which is a medical procedure that uses shock waves to break up stones in the kidney, bladder, or ureter. After the procedure, the tiny pieces of stones can more easily pass out of your body in your urine. The most common type of lithotripsy is “extracorporeal (pronounced extra-core-pore-ree-uhl) shock wave lithotripsy” or ESWL (E-S-W-L). Extracorporeal means outside the body. High-energy shock waves, also called sound waves, pass through the body until they hit the kidney stones and break them into smaller pieces.
- Kidney diseases are also referred to as renal (pronounced ree-nuhl) diseases. As mentioned earlier, inside each kidney there are tiny structures called nephrons which filter blood and remove waste products and extra water. Damage to the nephrons results in kidney disease and may leave the kidneys unable to remove wastes. Usually the damage occurs slowly over years. There are no obvious symptoms. Several conditions can cause kidney damage. You are at risk if you have diabetes, high blood pressure, or if a close family member has kidney disease. The high blood glucose (or blood sugar) levels associated with diabetes can damage your kidneys over time. The kidneys act as filters that clean your blood. When they are damaged, the waste and fluids build up in the blood and the body has no way to rid itself of the waste products. Kidney damage from diabetes is called diabetic nephropathy (pronounced neff-ropp-uh-thee (like theory). An early sign is having small amounts of protein in the urine, which can be detected by a urine test. A blood test can also help determine how well the kidneys are functioning. Kidney failure is also called end stage renal disease, E-S-R-D, or renal failure. This condition occurs when your body cannot rid itself of harmful wastes, your blood pressure rises, the body retains excess fluids, and the body does not make enough red blood cells.
- Wilms tumor is a rare type of kidney cancer that affects children. It is also referred to as nephroblastoma (pronounced neff-roe-blast-tome-uh). It causes a tumor on one or both kidneys. Having certain genetic conditions or birth defects can increase the risk of developing Wilms tumor. Children at risk should have follow-up examinations every three months. Symptoms of Wilms tumor include: a lump in the abdomen and blood in the urine. The tumor is usually diagnosed and removed in surgery. Other treatments include chemotherapy, radiation, biological therapy or a combination. Most children with Wilms tumors can be cured.
- Renal dialysis (pronounced dye-alice-sis) is the treatment for kidney failure. There are two main types of dialysis: hemodialysis (pronounced he-moe-dye-alice-sis) and peritoneal ((pronounced per-it-ton-knee-uhl) dialysis. Both types filter the blood to rid your body of harmful wastes, extra salt and water. Hemodialysis requires a machine. Peritoneal dialysis uses the lining of your abdomen to filter your blood. Treatment for kidney failure also includes a kidney transplant. A transplant is an operation that places a healthy donor kidney into a patient. The transplanted kidney takes over the work of the two kidneys that have failed. During the transplant, the surgeon places the new kidney in your lower abdomen and connects the artery and vein of the donor kidney to your own artery and vein. Often, the new kidney will start making urine as soon as blood starts flowing through it, but sometimes it takes a few weeks to start working. Kidney transplants are one of the most common transplant operations in the United States. Only one donated kidney is needed to replace the work previously done by two. The donated kidney may be obtained from a living related donor, a living unrelated donor, or a deceased donor.
- Kidney cancer is also referred to as renal cancer. Kidney cancer forms in the lining of the tiny tubes inside your kidneys. It happens most often in people over 40. Risk factors include: being over forty years old, having certain genetic conditions, and misusing pain medicine. Symptoms include: blood in your urine, a lump in your abdomen, unexplained weight loss, pain in your side, and loss of appetite.
- Treatment depends on your age, your overall health and how advanced the cancer is. It could include: surgery, radiation, chemotherapy or biological therapy.
- Here are some key word parts for the urinary system along with their meanings. In the third column you can see some of the medical terms that we can create by combining word parts. You should return to the online medical dictionary to hear the pronunciation and to become familiar with the meaning of the created terms.
- See if you can put your new knowledge of the urinary system to work in solving a mystery. An elderly white male presented to his family practitioner complaining of blood in his urine. After evaluation and testing, he was diagnosed with bladder cancer. What are the therapies or treatments the family practitioner should discuss with the patient? Did you guess surgery, radiation therapy, chemotherapy, and biological therapy? Bladder cancer occurs in the lining of the bladder. It is the sixth most common type of cancer in the US. Do you remember the risk factors for bladder cancer? You should know that smoking is a major risk factor for bladder cancer, as is exposure to chemicals in the workplace. In addition, a family history of bladder cancer puts you at a greater risk for bladder cancer. And, older, white males get bladder cancer more frequently than other groups. Treatments for bladder cancer include surgery, radiation, chemotherapy and biological therapy. Biological therapies use the body's immune system, either directly or indirectly, to fight cancer or to lessen the side effects that may be caused by some cancer treatments.
- This concludes the Urinary System. In summary, we defined, explained and correctly pronounced medical terms related to the urinary system. We also described common diseases and conditions with an overview of various treatments related to the urinary system.
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