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| what is only fluid tissue in human body? |
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| what type of tissue is blood |
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| (1) living cells (formed elements) and (2) non-living matrix (plasma) |
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| percentage of erythrocytes (in total blood volume)--usually about 45 percent |
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| oxygen rich is scarlet red and oxygen poor is dull red |
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| blood plasma is 90 percent… |
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| dissolved substances in blood plasma (6) |
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Definition
| "nutrients, salts (metal ions), respiratory gases, hormones, proteins, waste products" |
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| "(most abundant solute in plasma) albumin, clotting proteins, antibodies" |
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| regulates osmotic pressure (keeps water in bloodstream) |
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Definition
| help stem blood loss when blood vessel is injured |
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| help protect body from antigens |
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| "erythrocytes (no nucleus); leukocytes, platelets (cell fragments)" |
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| "biconcave disks; essentially bags of hemoglobin, no nucleus, contain very few organelles" |
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| iron-containing protein that transports most of oxygen in blood (without having to use it) |
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| crucial in body's defense against disease |
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| abnormally low leukocyte level |
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Definition
| "neutrophils, eosinophils, basophils, lymphocytes, monocytes" |
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Definition
| "granulocytes (neutrophils, eosinophils, basophils) and agranulocytes (lymphocytes, monocytes)" |
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Definition
| multilobed nucleus with fine granules; act as phagocytes at active sites of infection |
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Definition
| large brick-ret cytoplasmic granules; found in response to allergies and parasitic worms |
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| have histamine-containing granules; initiate inflammation |
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Definition
| large nucleus; plays important role in immune response |
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| largest of WBCs; function as macrophages (fighting invaders); important in fighting chronic infection |
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Definition
| derived from ruptured multinucleate cells; needed for clotting process |
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| blood cell formation that occurs in red bone marrow |
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Term
| all blood cells are derived from a… |
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Definition
| hemocytoblast (all blood cells derived from common stem cell) |
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Term
| heocytoblasts from 2 types of descendants |
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Definition
| lymphoid stem cell produces lymphocytes; myeloid stem cell produces other formed elements |
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Term
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Definition
| "(1) unable to divide, grow, or synthesize proteins; (2) wear out in 100-120 days; (3) when worn out, are eliminated by phagocytes in the spleen or liver; (4) lost cells replaced by division of hemocytoblasts" |
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Definition
| clotting; stopping of blood flow (result of break in blood vessel) |
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| rate or RBC production controlled by what hormone? |
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| what produces most erythorpoietin and why? |
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Definition
| kidneys--as response to reduced O2 levels in blood |
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Term
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Definition
| (1) platelet plug formation; (2) vascular spasms; (3) coagulation |
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Definition
| "collagen fibers exposed by break in blood, and platelets become ""sticky"" and cling to fibers, piling up to form platelet plug" |
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Term
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Definition
| "platelets (in platelet plug) release serotonin which causes blood vessel muscles to spasm, narrowing the blood vessel and decreasing loss of blood" |
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Definition
| "(1) injured tissues release thromboplastin; (2) PF3 interacts with thromboplastin, other blood protein clotting factors, and calcium ions to form an activator that triggers the clotting cascade; (3) prothrombin activator converts prothrombin to thrombin (an enzyme); (4) thrombin joins fibrinogen proteins into hair-like fibrin; (5) fibrin forms meshwork, which is basis for clot" |
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Term
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Definition
| (1) thrombus--clot in unbroken blood vessel that can be deadlyi n areas like heart; (2) embolus--thrombus that breaks away and floats freely in bloodstream and can later clog vessels in areas such as brain |
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| hereditary; normal clotting factors missing |
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| ABO blood group determined how? |
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Definition
| based on presence or absence of two antigens--Type A and Type B; lack of these antigens is type O |
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| Rh blood groups determined how? |
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Definition
| named because of presence or absence of one of 8 Rh antigens (most Americans are Rh+) |
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Term
| sites of fetal blood cell formation |
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Definition
| fetal liver and spleen; bone marrow takes over hematopoiesis by 7th month |
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