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Describe The Components Of Blood And Their Functions Pdf Do

 
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403 Forbidden.. Web. Retrieved on: Wednesday 31st August 2016. All rights reserved.. "Blood: Structure, Function, Components." St. Blood: Structure, Function, Components Online Homework Help SchoolWorkHelper . Science Science Biology Chemistry Earth & Space Environmental Science Geography English History Sociology & Philosophy Media & Art Law Business Business Careers Blood: Structure, Function, Components You are here: Home Science Biology Blood: Structure, Function, Components Print PDF Components: i) plasma ii) erythrocytes (red blood cells) iii) leucocytes (white blood cells) iv) platelets Plasma: o 55% of blood volume and is 90% water o Contains dissolved materials which are being transported: o proteins (fibrinogen), hormones, nutrients, waste products, gases Erythrocytes: o Function: > to carry oxygen o Structure: > no nucleus, cytoplasm contains mostly hemoglobin molecules o biconcave shape; allows for flexibility and movement through vessels of different shapes and sizes Hemoglobin Complex protein molecule made up of four protein chains, with an iron at the core of each chain o iron is the key component of hemoglobin that binds oxygen o Other info: are constantly being destroyed and replaced o because no nucleus, have a lifespan of about 4 months (120 days) o two million cells are destroyed every second Leucocytes: o Function: help defend the body from disease and infection o Structure: amoeboid-shaped cells destroy and consume invading bacteria and damaged body cells Plateletes: o Function: > assist in blood clotting process o cell fragments that have broken off from special cells in the bone marrow o Clotting i) when platelets encounter damaged blood vessels, they break open and release chemicals called clotting factors into the blood ii) factors help platelets to stick together to from a platelet plug iii) blood proteins then form fibrin molecules around the platelet plug iv) fibrin molecules form a mesh trapping blood cells and prevent them from passing through the damaged blood vessel Other info: o erythrocytes, leucocytes and platelets are manufactured in the bone marrow o cellular components of blood make up 45% of the blood volume o red blood cells are the most abundant cells in the blood (for every white blood cell in the blood there is 1000 red blood cells) Anemia: o when there is a decreased amount of hemoglobin in the blood o can be caused by: i) blood loss ii) too few red blood cells being produced iii) reduced amounts of hemoglobin molecules in red blood cells Shock: o when circulatory system can not meet the nutritional needs of vital organs o if nutritional needs of vital organs can not be met, the organs will shut down omponents: i) plasma ii) erythrocytes (red blood cells) iii) leucocytes (white blood cells) iv) platelets Plasma: 55% of blood volume and is 90% water Contains dissolved materials which are being transported: proteins (fibrinogen), hormones, nutrients, waste products, gases Erythrocytes: Function: to carry oxygen Structure: no nucleus, cytoplasm contains mostly hemoglobin molecules biconcave shape; allows for flexibility and movement through vessels of different shapes and sizes Hemoglobin: complex protein molecule made up of four protein chains, with an iron at the core of each chain iron is the key component of hemoglobin that binds oxygen Other info: are constantly being destroyed and replaced because no nucleus, have a lifespan of about 4 months (120 days) two million cells are destroyed every second Leucocytes: Function: help defend the body from disease and infection Structure: amoeboid-shaped cells destroy and consume invading bacteria and damaged body cells Plateletes: Function: assist in blood clotting process cell fragments that have broken off from special cells in the bone marrow Clotting i) when platelets encounter damaged blood vessels, they break open and release chemicals called clotting factors into the blood ii) factors help platelets to stick together to from a platelet plug iii) blood proteins then form fibrin molecules around the platelet plug iv) fibrin molecules form a mesh trapping blood cells and prevent them from passing through the damaged blood vessel Other info: erythrocytes, leucocytes and platelets are manufactured in the bone marrow cellular components of blood make up 45% of the blood volume red blood cells are the most abundant cells in the blood (for every white blood cell in the blood there is 1000 red blood cells) Anemia: when there is a decreased amount of hemoglobin in the blood can be caused by: i) blood loss ii) too few red blood cells being produced iii) reduced amounts of hemoglobin molecules in red blood cells Shock: when circulatory system can not meet the nutritional needs of vital organs if nutritional needs of vital organs can not be met, the organs will shut down Related posts: Diagnosing Blood Diseases Analysis Questions Cell Membrane Function and Structure CELL-MEDIATED IMMUNE RESPONSE PROTEINS Cell Reactions and Energy Citation St. Leave a Reply Be the First to Comment! 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