Jason Godo biology 120 chapter 2 presentation hematic system
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The document discusses the structures and functions of the hematic system. It identifies the main structures as plasma, erythrocytes (red blood cells), leukocytes (white blood cells), and platelets. It states the key functions are to transport oxygen, protect against pathogens by white blood cells, and control bleeding through platelet clot formation.
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Transportinhuman 120909032640-phpapp02
Transport in Human documents the main components of the human circulatory system including arteries, veins, capillaries, and the layers that make up blood vessels. It discusses that arteries carry oxygen-rich blood away from the heart to tissues, veins carry oxygen-depleted blood back to the heart, and capillaries allow for gas exchange. The inner layer of blood vessels is made of smooth muscle, the middle layer contains smooth muscle tissue, and the outer layer comprises flexible connective tissue. The document also relates the components of blood - plasma, red blood cells, white blood cells, and platelets - to their functions in carrying oxygen, nutrients, hormones, fighting infection, and clotting.
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The document discusses the main components of blood: blood plasma, which is the straw-colored liquid portion; red blood cells, which deliver oxygen to tissues; white blood cells, which defend the body against infection; and platelets, which are involved in blood clotting and originate from fragmentation of megakaryocytes. It also mentions that megakaryocytes produce platelets and that hemostasis is the process by which bleeding stops to keep blood within damaged blood vessels.
Transportinhuman 120909032640-phpapp02
Transport in Human documents the main blood vessels and components of blood. The three main blood vessels - arteries, veins, and capillaries - each consist of three layers and have distinct functions. Arteries carry oxygen-rich blood away from the heart to tissues, veins carry oxygen-depleted blood back to the heart, and capillaries allow for gas exchange in tissues. The components of blood - plasma, red blood cells, white blood cells, and platelets - also have specific roles like carrying nutrients and oxygen, fighting infection, and promoting clotting. Together, the circulatory system efficiently transports substances throughout the body.
Blood cells
There are three main types of blood cells: red blood cells, which deliver oxygen to tissues through blood flow; white blood cells, which are part of the immune system and help fight infection and disease; and platelets, which help form blood clots to stop bleeding at sites of injury. Each cell type has a distinct function but all are produced from stem cells in the bone marrow.
Circ.sys.
The circulatory system includes the blood, blood vessels, and heart. The blood transports nutrients, gases, hormones, and wastes throughout the body. It also helps fight infections and regulates temperature and pH levels. The circulatory system has several cell and tissue types that perform specialized functions like carrying oxygen (red blood cells), fighting infections (white blood cells), and promoting clotting (platelets). Many disorders can affect the circulatory system if these cells are damaged or numbers become abnormal. Modern advances help treat issues like blood transfusions, viral diseases, and organ transplant compatibility.
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This document summarizes the anatomy and physiology of blood. It describes how blood is composed of plasma and formed elements including red blood cells, white blood cells and platelets. It explains the functions of blood in transportation of gases, nutrients and waste, regulation of homeostasis, and protection from infection. The production of blood cells through hematopoiesis in the bone marrow is outlined, along with the roles of stem cells, growth factors and hormones in this process. Key details about red blood cells and hemoglobin are provided.
Transport in human
Transport in Human documents the main components of the human circulatory system. It discusses the three main types of blood vessels - arteries, veins, and capillaries. Arteries carry oxygen-rich blood away from the heart to tissues, having three layers including an inner layer that allows blood to flow freely. Veins carry oxygen-depleted blood back to the heart, containing valves to prevent backflow. Capillaries are microscopic and allow for gas exchange. The document also summarizes the functions of blood components like plasma, red blood cells, white blood cells, and platelets in nutrient transport, fighting infection, temperature regulation, and clotting.
Biochemical composition and functions of blood and lymph
Blood has three main functions: transport, protection, and regulation. It transports gases, nutrients, wastes, hormones, and heat. White blood cells protect the body by destroying pathogens and cancer cells, while platelets help with blood clotting. Blood also helps regulate pH and water balance. It is composed of plasma and formed elements, including red blood cells, which carry oxygen and carbon dioxide, white blood cells, and platelets. Red blood cells are biconcave discs that transport oxygen and carbon dioxide via hemoglobin.
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The document discusses the main components of blood: blood plasma, which is the straw-colored liquid portion; red blood cells, which deliver oxygen to tissues; white blood cells, which defend the body against infection; and platelets, which are involved in blood clotting and originate from fragmentation of megakaryocytes. It also mentions that megakaryocytes produce platelets and that hemostasis is the process by which bleeding stops to keep blood within damaged blood vessels.
Transportinhuman 120909032640-phpapp02
Transport in Human documents the main blood vessels and components of blood. The three main blood vessels - arteries, veins, and capillaries - each consist of three layers and have distinct functions. Arteries carry oxygen-rich blood away from the heart to tissues, veins carry oxygen-depleted blood back to the heart, and capillaries allow for gas exchange in tissues. The components of blood - plasma, red blood cells, white blood cells, and platelets - also have specific roles like carrying nutrients and oxygen, fighting infection, and promoting clotting. Together, the circulatory system efficiently transports substances throughout the body.
Blood cells
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The circulatory system includes the blood, blood vessels, and heart. The blood transports nutrients, gases, hormones, and wastes throughout the body. It also helps fight infections and regulates temperature and pH levels. The circulatory system has several cell and tissue types that perform specialized functions like carrying oxygen (red blood cells), fighting infections (white blood cells), and promoting clotting (platelets). Many disorders can affect the circulatory system if these cells are damaged or numbers become abnormal. Modern advances help treat issues like blood transfusions, viral diseases, and organ transplant compatibility.
Blood – anatomy and physio
This document summarizes the anatomy and physiology of blood. It describes how blood is composed of plasma and formed elements including red blood cells, white blood cells and platelets. It explains the functions of blood in transportation of gases, nutrients and waste, regulation of homeostasis, and protection from infection. The production of blood cells through hematopoiesis in the bone marrow is outlined, along with the roles of stem cells, growth factors and hormones in this process. Key details about red blood cells and hemoglobin are provided.
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Biochemical composition and functions of blood and lymph
Blood has three main functions: transport, protection, and regulation. It transports gases, nutrients, wastes, hormones, and heat. White blood cells protect the body by destroying pathogens and cancer cells, while platelets help with blood clotting. Blood also helps regulate pH and water balance. It is composed of plasma and formed elements, including red blood cells, which carry oxygen and carbon dioxide, white blood cells, and platelets. Red blood cells are biconcave discs that transport oxygen and carbon dioxide via hemoglobin.
CLIL: Biology; blood cells.
Red blood cells carry oxygen throughout the body and live for about 120 days. White blood cells help fight infection as part of the immune system. Platelets help the blood clot. Blood is made up of plasma, which allows cells to move, and four main cell types - red blood cells, white blood cells, platelets, and plasma. Arteries carry oxygenated blood away from the heart while veins carry deoxygenated blood back to the heart. Capillaries are where gas exchange occurs between blood and tissues. The immune system responds to infections through a coordinated response between white blood cells and antibodies.
Blood and Blood Vessels
The document summarizes the main blood vessels connected to the heart - arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart and have three layers. Veins carry deoxygenated blood back to the heart and have valves to prevent backflow. Capillaries are microscopic and one cell thick, allowing for gas exchange in tissues. The document also briefly outlines the functions of blood, platelets, and white blood cells in circulation and immunity. It concludes with a fun fact about the length of blood vessels if laid end to end.
Physio blood physiology
This document provides an overview of 10 topics related to blood:
1. The composition and components of blood including erythrocytes, leukocytes, and platelets.
2. Erythropoiesis, the production and degradation of red blood cells.
3. The immune system including humoral and cellular immunity.
4. Blood groups such as ABO and Rh and issues like blood typing and transfusion reactions.
5. Hemostasis, the process of blood clotting and fibrinolysis.
Types of blood cells
Red blood cells are disc-shaped and contain hemoglobin which transports oxygen throughout the body. Anaemia occurs when there are not enough red blood cells or low hemoglobin levels, reducing the blood's ability to carry oxygen and causing paleness and fatigue. White blood cells help fight infection by destroying microorganisms and foreign substances. Platelets form clots to stop bleeding from cuts and wounds. The document provides information on red blood cells, anaemia, white blood cells, and platelets including their functions and normal counts per 1,000ml of blood.
Chapter 7 & 14
The document summarizes key aspects of blood and the circulatory system in 3 paragraphs or less:
Blood contains red blood cells, white blood cells, platelets, and plasma. Red blood cells carry oxygen and carbon dioxide, while white blood cells help fight infection. Platelets help the blood clot to stop bleeding from cuts or wounds.
The circulatory system is made up of the heart, arteries, veins, and capillaries. Oxygenated blood is pumped from the heart through arteries, then into capillaries to supply cells before returning to the heart as deoxygenated blood via veins. The double circulatory system separates oxygenated and deoxygenated blood flows.
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Blood, It's constituents and Functions
Blood is composed of cells suspended in plasma. The main cells are red blood cells (RBCs), which carry oxygen, white blood cells (WBCs), which fight infection, and platelets, which help with clotting. RBCs are produced through erythropoiesis in the bone marrow and contain hemoglobin to carry oxygen. WBCs include neutrophils, lymphocytes, monocytes, eosinophils, and basophils which protect the body. Conditions like anemia and leukemia can affect blood cell counts.
Lecture 11 & 12
Lymphocytes are spherical white blood cells that make up 20-45% of circulating white blood cells. They have a dark staining nucleus and thin rim of blue staining cytoplasm. Each lymphocyte recognizes a specific antigen. T lymphocytes can directly attack foreign cells, while B lymphocytes transform into plasma cells that secrete antibodies.
Hemostasis is the prevention of blood loss achieved through vascular constriction, formation of a platelet plug, and formation of a blood clot. When a blood vessel is cut, the smooth muscle contracts to reduce blood flow. Platelets aggregate at the site of injury to form a platelet plug. Blood coagulation involves the conversion of prothrombin to thrombin by prothrombin activ
Lecture 2 leucocytes
White blood cells (WBCs), also known as leukocytes, are cells that contain a nucleus and function to protect the body as part of the immune system. There are different types of WBCs including granulocytes like neutrophils, eosinophils, and basophils, as well as agranulocytes like lymphocytes and monocytes. WBCs are formed through leukopoiesis in the bone marrow and lymphatic tissue and have varying lifespans ranging from hours to years depending on the cell type. Disorders can occur when WBC counts are abnormal, such as leukopenia when counts are low and leukocytosis when they are high.
BODY FLUIDS AND CIRCULATION CLASS 11 - ASWIN KUMAR
Blood is a connective tissue composed of plasma and formed elements. Plasma is 55% of blood and contains water, proteins, minerals, and blood clotting factors. Formed elements include red blood cells, white blood cells, and platelets. Red blood cells carry oxygen and lack a nucleus. White blood cells help fight infection. Platelets help with clotting. Blood types depend on antigens on red blood cells. Matching blood types is important for safe transfusions. The coagulation process involves clotting factors that create fibrin clots to stop bleeding. Lymph is tissue fluid collected by the lymphatic system and returned to veins.
Blood cell formation
Hematopoiesis is the process by which blood cells are produced throughout life from hematopoietic stem cells located in the bone marrow. It begins early in embryonic development in the yolk sac and later moves to the liver and spleen before full establishment in the bone marrow. In the bone marrow, hematopoietic stem cells differentiate into various blood cell types including red blood cells, white blood cells, and platelets to replenish the blood supply on a continuous basis. The rate of hematopoiesis is regulated by the body's needs to replace old or damaged blood cells.
Blood, Lymphatic & Immune System
The document discusses the anatomy and physiology of the blood, lymphatic, and immune systems. It describes the three main types of blood cells, blood typing based on antigens, and common blood-related terms. It also explains that the lymphatic and immune systems work together to fight foreign substances and disease. Key organs that are part of these systems include lymph nodes, lymphatic vessels, spleen, thymus gland, and tonsils. The document provides details on the functions of lymph nodes, lymphatic vessels, spleen, thymus gland, and tonsils. It concludes with definitions of immunity and the two types of immunity.
BODY BLOOD AND CIRCULATION _BODY FLUID
18.1.2 Formed Elements
Erythrocytes, leucocytes and platelets are collectively called formed
elements (Figure 18.1) and they constitute nearly 45 per cent of the blood.
Erythrocytes or red blood cells (RBC) are the most abundant of all
the cells in blood. A healthy adult man has, on an average, 5 millions to
5.5 millions of RBCs mm–3 of blood. RBCs are formed in the red bone
marrow in the adults. RBCs are devoid of nucleus in most of the mammals
and are biconcave in shape. They have a red coloured, iron containing
complex protein called haemoglobin, hence the colour and name of these
cells. A healthy individual has 12-16 gms of haemoglobin in every
100 ml of blood. These molecules play a significant role in transport of
respiratory gases. RBCs have an average life span of 120 days after which
they are destroyed in the spleen (graveyard of RBCs).
Leucocytes are also known as white blood cells (WBC) as they are
colourless due to the lack of haemoglobin. They are nucleated and are
relatively lesser in number which averages 6000-8000 mm–3 of blood.
Leucocytes are generally short lived. We have two main categories of WBCs
– granulocytes and agranulocytes. Neutrophils, eosinophils and basophils
are different types of granulocytes, while lymphocytes and monocytes
are the agranulocytes. Neutrophils are the most abundant cells (60-65
per cent) of the total WBCs and basophils are the least (0.5-1 per cent)
among them. Neutrophils and monocytes (6-8 per cent) are phagocytic
cells which destroy foreign organisms entering the body. Basophils secrete
histamine, serotonin, heparin, etc., and are involved in inflammatory
reactions. Eosinophils (2-3 per cent) resist infections and are also
Blood constituents&function
Blood performs several essential functions, including transporting gases, nutrients, waste, and cells throughout the body. It also regulates pH, temperature, and water content of cells. Blood consists of blood cells suspended in plasma. The three main types of blood cells are red blood cells, white blood cells, and platelets. Red blood cells transport oxygen and carbon dioxide. White blood cells help protect the body against disease and infection. Platelets help the blood clot to prevent blood loss from injuries.
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This is a series of lectures on microbiology useful for undergraduate medical and paramedical students
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Blood consists of plasma, red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin and transport oxygen throughout the body, while white blood cells help fight infection. Platelets assist in clotting blood when injuries occur. Together these components maintain homeostasis, transport nutrients and waste, and protect the body from pathogens.
Anatomy And Physiology
The document summarizes key points about blood and the cardiovascular system:
- Blood consists of plasma and cellular components including red blood cells, white blood cells, and platelets.
- Red blood cells transport oxygen to tissues via hemoglobin and remove carbon dioxide. White blood cells help fight infection. Platelets initiate blood clotting to stop bleeding.
- The liver and kidneys play important roles in blood production and regulation via the hormone erythropoietin. Issues like anemia and sickle cell disease affect blood cell production and function.
Blood cells
This document summarizes the different types of blood cells: red blood cells, white blood cells, and platelets. Red blood cells carry oxygen throughout the body via blood flow. They contain hemoglobin, an iron-containing molecule. White blood cells are involved in the immune system and protect the body against infection and foreign invaders. There are five types of white blood cells. Platelets function in blood coagulation and have a lifespan of 5-9 days. The main metal present in blood is iron, which is contained in red blood cells. A normal human has 5.78-6.21 liters of blood.
Blood its composition and funtions
Blood is composed of plasma and formed elements. Plasma contains water, proteins, hormones, carbon dioxide, nutrients, and waste. The three major formed elements are red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin and transport oxygen throughout the body. Anemia is a reduction in red blood cells or hemoglobin levels, which can be caused by blood loss, impaired red blood cell production, or increased red blood cell destruction. Common symptoms of anemia include paleness, weakness, fatigue, dizziness, and changes in heart rate.
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The document describes the composition and function of the cardiovascular system. It discusses the cellular components of blood including erythrocytes, leukocytes, and platelets. It also describes the fluid component known as plasma and its contents. The document outlines the process of blood clotting and blood types. It details the structure and function of arteries, veins, capillaries, and lymphatic vessels. It explains the pathway of blood flow through the heart and major blood vessels to organs. It discusses electrical conduction in the heart and problems that can occur in the heart, blood vessels, and cardiovascular system.
Blood
Blood is a liquid connective tissue composed of plasma and formed elements suspended within. Plasma is 55% of blood volume and contains proteins, salts, nutrients. Formed elements include red blood cells (RBCs), white blood cells (WBCs), and platelets. RBCs contain hemoglobin and transport oxygen, while WBCs defend against pathogens. Platelets help clot blood to stop bleeding. Blood composition and cell characteristics provide important clinical information about health status.
Blood Circulatory System in Human Body. docx
This system will tell you about the blood cell formation, blood circulation and blood clotting.
Immune system
The immune system defends the body against infection and disease. It is made up of organs like the tonsils, adenoids, lymph nodes, bone marrow, and spleen, which help produce white blood cells and antibodies to fight pathogens. The tonsils, adenoids, and lymph nodes trap germs. The thymus and bone marrow produce lymphocytes that identify and destroy foreign invaders. The spleen filters the blood and stores platelets and white blood cells. Together these components provide the body's defense against infection. When the immune system malfunctions it can lead to autoimmune diseases like systemic lupus erythematosus where the immune system mistakenly attacks the body's healthy tissue.
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Red blood cells carry oxygen throughout the body and live for about 120 days. White blood cells help fight infection as part of the immune system. Platelets help the blood clot. Blood is made up of plasma, which allows cells to move, and four main cell types - red blood cells, white blood cells, platelets, and plasma. Arteries carry oxygenated blood away from the heart while veins carry deoxygenated blood back to the heart. Capillaries are where gas exchange occurs between blood and tissues. The immune system responds to infections through a coordinated response between white blood cells and antibodies.
Blood and Blood Vessels
The document summarizes the main blood vessels connected to the heart - arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart and have three layers. Veins carry deoxygenated blood back to the heart and have valves to prevent backflow. Capillaries are microscopic and one cell thick, allowing for gas exchange in tissues. The document also briefly outlines the functions of blood, platelets, and white blood cells in circulation and immunity. It concludes with a fun fact about the length of blood vessels if laid end to end.
Physio blood physiology
This document provides an overview of 10 topics related to blood:
1. The composition and components of blood including erythrocytes, leukocytes, and platelets.
2. Erythropoiesis, the production and degradation of red blood cells.
3. The immune system including humoral and cellular immunity.
4. Blood groups such as ABO and Rh and issues like blood typing and transfusion reactions.
5. Hemostasis, the process of blood clotting and fibrinolysis.
Types of blood cells
Red blood cells are disc-shaped and contain hemoglobin which transports oxygen throughout the body. Anaemia occurs when there are not enough red blood cells or low hemoglobin levels, reducing the blood's ability to carry oxygen and causing paleness and fatigue. White blood cells help fight infection by destroying microorganisms and foreign substances. Platelets form clots to stop bleeding from cuts and wounds. The document provides information on red blood cells, anaemia, white blood cells, and platelets including their functions and normal counts per 1,000ml of blood.
Chapter 7 & 14
The document summarizes key aspects of blood and the circulatory system in 3 paragraphs or less:
Blood contains red blood cells, white blood cells, platelets, and plasma. Red blood cells carry oxygen and carbon dioxide, while white blood cells help fight infection. Platelets help the blood clot to stop bleeding from cuts or wounds.
The circulatory system is made up of the heart, arteries, veins, and capillaries. Oxygenated blood is pumped from the heart through arteries, then into capillaries to supply cells before returning to the heart as deoxygenated blood via veins. The double circulatory system separates oxygenated and deoxygenated blood flows.
When blood vessels
Blood, It's constituents and Functions
Blood is composed of cells suspended in plasma. The main cells are red blood cells (RBCs), which carry oxygen, white blood cells (WBCs), which fight infection, and platelets, which help with clotting. RBCs are produced through erythropoiesis in the bone marrow and contain hemoglobin to carry oxygen. WBCs include neutrophils, lymphocytes, monocytes, eosinophils, and basophils which protect the body. Conditions like anemia and leukemia can affect blood cell counts.
Lecture 11 & 12
Lymphocytes are spherical white blood cells that make up 20-45% of circulating white blood cells. They have a dark staining nucleus and thin rim of blue staining cytoplasm. Each lymphocyte recognizes a specific antigen. T lymphocytes can directly attack foreign cells, while B lymphocytes transform into plasma cells that secrete antibodies.
Hemostasis is the prevention of blood loss achieved through vascular constriction, formation of a platelet plug, and formation of a blood clot. When a blood vessel is cut, the smooth muscle contracts to reduce blood flow. Platelets aggregate at the site of injury to form a platelet plug. Blood coagulation involves the conversion of prothrombin to thrombin by prothrombin activ
Lecture 2 leucocytes
White blood cells (WBCs), also known as leukocytes, are cells that contain a nucleus and function to protect the body as part of the immune system. There are different types of WBCs including granulocytes like neutrophils, eosinophils, and basophils, as well as agranulocytes like lymphocytes and monocytes. WBCs are formed through leukopoiesis in the bone marrow and lymphatic tissue and have varying lifespans ranging from hours to years depending on the cell type. Disorders can occur when WBC counts are abnormal, such as leukopenia when counts are low and leukocytosis when they are high.
BODY FLUIDS AND CIRCULATION CLASS 11 - ASWIN KUMAR
Blood is a connective tissue composed of plasma and formed elements. Plasma is 55% of blood and contains water, proteins, minerals, and blood clotting factors. Formed elements include red blood cells, white blood cells, and platelets. Red blood cells carry oxygen and lack a nucleus. White blood cells help fight infection. Platelets help with clotting. Blood types depend on antigens on red blood cells. Matching blood types is important for safe transfusions. The coagulation process involves clotting factors that create fibrin clots to stop bleeding. Lymph is tissue fluid collected by the lymphatic system and returned to veins.
Blood cell formation
Hematopoiesis is the process by which blood cells are produced throughout life from hematopoietic stem cells located in the bone marrow. It begins early in embryonic development in the yolk sac and later moves to the liver and spleen before full establishment in the bone marrow. In the bone marrow, hematopoietic stem cells differentiate into various blood cell types including red blood cells, white blood cells, and platelets to replenish the blood supply on a continuous basis. The rate of hematopoiesis is regulated by the body's needs to replace old or damaged blood cells.
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The document discusses the anatomy and physiology of the blood, lymphatic, and immune systems. It describes the three main types of blood cells, blood typing based on antigens, and common blood-related terms. It also explains that the lymphatic and immune systems work together to fight foreign substances and disease. Key organs that are part of these systems include lymph nodes, lymphatic vessels, spleen, thymus gland, and tonsils. The document provides details on the functions of lymph nodes, lymphatic vessels, spleen, thymus gland, and tonsils. It concludes with definitions of immunity and the two types of immunity.
BODY BLOOD AND CIRCULATION _BODY FLUID
18.1.2 Formed Elements
Erythrocytes, leucocytes and platelets are collectively called formed
elements (Figure 18.1) and they constitute nearly 45 per cent of the blood.
Erythrocytes or red blood cells (RBC) are the most abundant of all
the cells in blood. A healthy adult man has, on an average, 5 millions to
5.5 millions of RBCs mm–3 of blood. RBCs are formed in the red bone
marrow in the adults. RBCs are devoid of nucleus in most of the mammals
and are biconcave in shape. They have a red coloured, iron containing
complex protein called haemoglobin, hence the colour and name of these
cells. A healthy individual has 12-16 gms of haemoglobin in every
100 ml of blood. These molecules play a significant role in transport of
respiratory gases. RBCs have an average life span of 120 days after which
they are destroyed in the spleen (graveyard of RBCs).
Leucocytes are also known as white blood cells (WBC) as they are
colourless due to the lack of haemoglobin. They are nucleated and are
relatively lesser in number which averages 6000-8000 mm–3 of blood.
Leucocytes are generally short lived. We have two main categories of WBCs
– granulocytes and agranulocytes. Neutrophils, eosinophils and basophils
are different types of granulocytes, while lymphocytes and monocytes
are the agranulocytes. Neutrophils are the most abundant cells (60-65
per cent) of the total WBCs and basophils are the least (0.5-1 per cent)
among them. Neutrophils and monocytes (6-8 per cent) are phagocytic
cells which destroy foreign organisms entering the body. Basophils secrete
histamine, serotonin, heparin, etc., and are involved in inflammatory
reactions. Eosinophils (2-3 per cent) resist infections and are also
Blood constituents&function
Blood performs several essential functions, including transporting gases, nutrients, waste, and cells throughout the body. It also regulates pH, temperature, and water content of cells. Blood consists of blood cells suspended in plasma. The three main types of blood cells are red blood cells, white blood cells, and platelets. Red blood cells transport oxygen and carbon dioxide. White blood cells help protect the body against disease and infection. Platelets help the blood clot to prevent blood loss from injuries.
blood and its components
This is a series of lectures on microbiology useful for undergraduate medical and paramedical students
blood and its functions/B.pharmacy 2 semester
Blood consists of plasma, red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin and transport oxygen throughout the body, while white blood cells help fight infection. Platelets assist in clotting blood when injuries occur. Together these components maintain homeostasis, transport nutrients and waste, and protect the body from pathogens.
Anatomy And Physiology
The document summarizes key points about blood and the cardiovascular system:
- Blood consists of plasma and cellular components including red blood cells, white blood cells, and platelets.
- Red blood cells transport oxygen to tissues via hemoglobin and remove carbon dioxide. White blood cells help fight infection. Platelets initiate blood clotting to stop bleeding.
- The liver and kidneys play important roles in blood production and regulation via the hormone erythropoietin. Issues like anemia and sickle cell disease affect blood cell production and function.
Blood cells
This document summarizes the different types of blood cells: red blood cells, white blood cells, and platelets. Red blood cells carry oxygen throughout the body via blood flow. They contain hemoglobin, an iron-containing molecule. White blood cells are involved in the immune system and protect the body against infection and foreign invaders. There are five types of white blood cells. Platelets function in blood coagulation and have a lifespan of 5-9 days. The main metal present in blood is iron, which is contained in red blood cells. A normal human has 5.78-6.21 liters of blood.
Blood its composition and funtions
Blood is composed of plasma and formed elements. Plasma contains water, proteins, hormones, carbon dioxide, nutrients, and waste. The three major formed elements are red blood cells, white blood cells, and platelets. Red blood cells contain hemoglobin and transport oxygen throughout the body. Anemia is a reduction in red blood cells or hemoglobin levels, which can be caused by blood loss, impaired red blood cell production, or increased red blood cell destruction. Common symptoms of anemia include paleness, weakness, fatigue, dizziness, and changes in heart rate.
2 Cardiovascular System Web
The document describes the composition and function of the cardiovascular system. It discusses the cellular components of blood including erythrocytes, leukocytes, and platelets. It also describes the fluid component known as plasma and its contents. The document outlines the process of blood clotting and blood types. It details the structure and function of arteries, veins, capillaries, and lymphatic vessels. It explains the pathway of blood flow through the heart and major blood vessels to organs. It discusses electrical conduction in the heart and problems that can occur in the heart, blood vessels, and cardiovascular system.
Blood
Blood is a liquid connective tissue composed of plasma and formed elements suspended within. Plasma is 55% of blood volume and contains proteins, salts, nutrients. Formed elements include red blood cells (RBCs), white blood cells (WBCs), and platelets. RBCs contain hemoglobin and transport oxygen, while WBCs defend against pathogens. Platelets help clot blood to stop bleeding. Blood composition and cell characteristics provide important clinical information about health status.
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This system will tell you about the blood cell formation, blood circulation and blood clotting.
Immune system
The immune system defends the body against infection and disease. It is made up of organs like the tonsils, adenoids, lymph nodes, bone marrow, and spleen, which help produce white blood cells and antibodies to fight pathogens. The tonsils, adenoids, and lymph nodes trap germs. The thymus and bone marrow produce lymphocytes that identify and destroy foreign invaders. The spleen filters the blood and stores platelets and white blood cells. Together these components provide the body's defense against infection. When the immune system malfunctions it can lead to autoimmune diseases like systemic lupus erythematosus where the immune system mistakenly attacks the body's healthy tissue.
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The circulatory system transports blood throughout the body using the heart as a pumping organ and a network of arteries, veins, and capillaries. It carries oxygen, nutrients, hormones, and cellular waste products. The document defines the key components of circulation including blood composition and the roles of red blood cells, white blood cells, and platelets. It also provides details on the production and functions of these blood components.
blood and its components.pptx
This document discusses the components and functions of blood. It notes that blood is composed of plasma and formed elements including red blood cells, white blood cells, and platelets. It describes the roles of these components, such as red blood cells transporting oxygen and carbon dioxide, white blood cells providing immunity, and platelets helping form clots. The document also covers hematopoiesis, the formation of blood cells in the bone marrow, and hemostasis, the process of blood clotting to stop bleeding. It discusses blood groups and the importance of matching blood types between donors and recipients for safe blood transfusions.
Tissue repair
The document discusses tissue repair and the body's response to injury. When tissue is injured, it stimulates an inflammatory response to remove harmful agents and restore the tissue. The immune response also aids in this process by attacking specific invaders. Tissue repair involves inflammation, organization to restore blood supply, and regeneration or fibrosis for permanent repair. Different tissues have varying regenerative capacities. Platelets play a key role in stopping bleeding by sticking to injuries and initiating the clotting cascade through coagulation factors to form a clot and seal the wound.
Circulatory system
The circulatory system transports blood throughout the body using the heart and blood vessels. The heart pumps blood into arteries which branch into smaller arterioles and capillaries where nutrients and oxygen are exchanged, then blood returns to the heart through veins. Blood contains red blood cells, white blood cells, platelets suspended in plasma which carries nutrients, waste, hormones, and antibodies. The circulatory system allows for transportation of these materials to sustain life.
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Chapter 20 Blood Circulatory System
The document summarizes key aspects of the circulatory, lymphatic, and immune systems. It describes the major components of blood (plasma, red blood cells, white blood cells, platelets) and their functions. It explains the structure and functioning of the heart, including the heart chambers, valves, heart sounds, and regulation of heartbeat. It also outlines the types of blood vessels (arteries, veins, capillaries), blood pressure, and lymphatic system components (lymphatic vessels, lymph nodes, spleen, thymus). Finally, it provides a brief overview of blood typing and natural immunity.
Blood components
Blood is a vital fluid that circulates through the body, transporting nutrients, oxygen, hormones, and waste products. It is composed of plasma, red blood cells, white blood cells, and platelets. Red blood cells carry oxygen, white blood cells fight infection, and platelets help with clotting. Blood needs vitamins and minerals to maintain the health and lifespan of its components. Minor blood loss can be replaced through normal production, while major loss requires a transfusion.
Blood and Lymphatic and Immune System
This document provides an overview of the blood, lymphatic, and immune systems. It discusses the main functions and components of blood, including erythrocytes, leukocytes, platelets, and plasma. It also outlines the key functions and organs of the lymphatic system, which works to cleanse and return excess tissue fluid to circulation. The immune system fights disease and infection. Major lymphatic organs discussed are lymph nodes, lymphatic vessels, spleen, thymus glands, and tonsils. The document also lists common word parts and suffixes used in terms related to these body systems.
Circulatory system
The circulatory system transports blood, nutrients, gases, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood. The heart pumps blood through two main circuits - the pulmonary circuit, which carries deoxygenated blood to the lungs and returns oxygenated blood, and the systemic circuit, which pumps oxygenated blood to the entire body and returns deoxygenated blood back to the heart. The cardiovascular system is further divided into four chambers, two atria that receive blood and two ventricles that pump blood out of the heart. Blood contains red blood cells, white blood cells, platelets, and plasma and comes in four main blood groups - A, B, AB, and
04 Blood.ppt
Blood consists of red blood cells, platelets, and various white blood cells suspended in plasma. Red blood cells carry oxygen from the lungs to tissues and carbon dioxide back to the lungs. White blood cells help protect the body from infection. Platelets help the blood clot to prevent excessive bleeding from cuts or wounds. Bone marrow produces all blood cells, which have different functions and lifespans. Blood type is determined by antigens on red blood cells and compatibility must be checked before blood transfusions.
Circulatory system
The document provides an overview of the human circulatory system. It discusses the major components of the circulatory system including the heart, blood, and blood vessels. The heart is a muscular organ that pumps blood throughout the body via the blood vessels. Blood carries oxygen, nutrients, hormones and removes waste via the network of arteries, veins and capillaries. The circulatory system works with the respiratory system to oxygenate the blood in the lungs and transport gases and nutrients throughout the body.
Human systems process_in_living_organisms[1][1]
The circulatory system moves blood throughout the body using the heart, blood vessels, and blood. Blood carries oxygen, nutrients, hormones, and waste products as it circulates through the body in a closed system of arteries, veins, and capillaries. The circulatory system is divided into the systemic circulation, pulmonary circulation, and coronary circulation. Forces like blood pressure and heart rate influence the flow of blood through the body and allow for the exchange of materials between blood and tissues.
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Blood clots
Blood clots form through complex interactions between substances in blood and blood vessel walls. Platelets initiate clot formation by clumping at damaged sites and releasing chemicals. Blood clotting factors then trigger a chemical reaction producing fibrin to strengthen the clot. Anti-clotting proteins regulate clot growth. The body slowly breaks down clots as tissue heals. Blood clots can form abnormally and cause health issues when substances that promote clotting come into contact with blood, such as if a cholesterol plaque or blood vessel ruptures, or if blood flow is impaired.
Platelets or thrombocytes
Blood platelets (or thrombocytes) are very small, 2-4 μm in diameter, non-nucleated, membrane-bound cells derived from the cytoplasm of megakaryocytes in the red bone marrow.
Each megakaryocyte can produce 2,000–5,000 platelets
Even though platelets like RBCs have no nucleus, their cytoplasm is packed with granules containing a variety of substances that promote blood clotting.
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- 2. Structures of the Hematic System Plasma Erythrocytes Leukocytes Platelets Copyright: Texas Heart Institute
- 3. Structures of the Hematic System Plasma The liquid part of blood or lymph Erythrocytes Red Blood Cells Leukocytes White Blood Cells Platelets Cells that aid in coagulation Copyright: Texas Heart Institute
- 4. Functions of the Hematic System Transport oxygen Protect against pathogens Control bleeding
- 6. Protect against pathogens The body has different ways of protecting itself against pathogens. White blood cells help to defend us against pathogens which may have entered the body. They protect us in the following ways: •by ingesting the pathogens •by producing antibodies which destroy particular bacteria or viruses •by producing Copyright: Dr. Parry’s Website antitoxins which act against the toxins produced by pathogens.
- 7. Control bleeding Platelets are small disc shaped cells that are found throughout the blood. Platelets start the repair of injured blood vessels. First, platelets clump together and stick to the wall of the injured blood vessel. Then, a fibrin net is formed over the platelets. These steps describe how a blood clot is formed.