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Chap 14 Test.
| Question | Answer |
|---|---|
| Blood is a __________ tissue type? | connective |
| List two functions of blood. | 1. transports vital substances.2. distributes heat |
| Name three types of cells found in the blood? (scientific name) | 1.Erythrocyte2. Leukocyte3. Thrombocyte |
| where are the blood cells produced in the body? | Red Bone Marrow |
| Erythro means? | red |
| leuko means? | white |
| Thrombo means? | to clot |
| Why arent thrombocytes considered to be true cells? | Because they are cell fragments |
| an avg. sized human has how many liters of blood in there body? | 5 liters |
| ____% of a persons body weight is their blood? | 8 |
| Name two situations which cause a person's blood volume to vary. | 1. weight; body size2. fluid concentration |
| _____% of the blood is plasma | 55 |
| ____% of blood is RBC's | 45 |
| _____% is WBC and platelets | 17 |
| shape of RBC's? | biconcave discs |
| Why is the shape of RBC functionally important? | readily sqeeze through capillaries |
| Why is it advantageous that RBC lack mitochondria | mitochondria doesnt steal oxygen |
| what does a persons RBC count really show | their blood oxygen carrying capacity |
| Name two organs associated with the production of erythroprotein | liver and kidney |
| what condition must the body be entering in order for the production of erythropoietin to be stimulated | low blood oxygen |
| life span of RBC | 120 days |
| where are dead RBC's destroyed and the hemoglobin essentially recycled? | spleen and liver |
| why does the iron found in the hemoglobin of dead RBC's return to the red bone marrow? | To be reused. |
| List 6 types of anemia | 1. Sickle Cell2. Aplastic3. Iron Deficency 4. Hemolytic5. thalassemia6. Pernicious |
| _____ anemia is caused by a defective usually in through with Greek ancestry? | thalassemia |
| ___ anemia is due to damaged bone marrow? | aplastic |
| an excess of immature RBC can cause what type of anemia | pernicious anemia |
| A high number of destroyed RBCs will cause what type of anemia | hemolotic anemia |
| A diet low in iron many cause | iron defiency anemia |
| abnormally shaped RBC's are the defect of? | Sickle cell anemia |
| ___ and ____ are two groups of WBC types | granulocytes and agranulocytes |
| granulocytes (List 3) | 1. neutrophils2. esinophils3. basophils |
| agranulocytes (List 2) | 1. lymphocytes2. monocytes |
| _____ defend against parasitic worms and help moderate allergic reactions. | esinophils |
| _____ are the first WBCs to fight an infection. | Neutrophils |
| _____ release heparin and histamine | basophils |
| fuction of heparin | prevents blood clots |
| function of histamine | dialates blood vessles |
| T and B cells are ____ types of angranulocytes | lymphocytes |
| Antibodies are produced by ___cells. | B |
| Large agranulocytes that phagocytize bacteria are called | monocytes |
| WBC's squeeze through capillaries to get to the site of infection via a process called | diapadesis |
| the act of WBC's moving towards a chemical released by damaged tissue is called | positive chemotaxis |
| a high WBC count is condition called | leukocytosis |
| a low WBC count is condition called | leukopenia |
| 2 conditions that cause leukopenia | measles and chicken pox |
| list condition that might cause leukocytosis | acute infections |
| what is adefferential WBC count | diagnose particular disease |
| why is it important to take a differential WBC count | to compare the different WBC counts to locate infection |
| function of RBC | carry oxygen |
| function of WBC | fight infection |
| function of platelets | help control blood loss frm broken vessels; form blood clot |
| ____% of plasma is water. | 92 |
| 2 major blood gases | Oxygen and Carbon Dioxide |
| 3 nutrients found in the blood | sugars, lipids, and amino acids |
| that watse product of catabolism of protien is | urea |
| name 4 electrolytes found in the blood plasma | 1. sodium2. chloride3. calcium4. magnesium |
| the stoppage of bleeding is called | blood coagulation |
| 3 states of hemostasis | 1. blood vessel spasm2. platelet plug formation3. coagulation |
| ___ is the final substance produced in blood coagulation | fibrin |
| ___ is the sub. that digests blood clots | plasmin |
| the chemical released by platelets that promotes the healing of the blood vessels is called | platelet- derived growth factor |
| a blood clot moving throughout the body is | emblous |
| abnormal blood clot is known as | thrombus |
| 4 blood types | a,b,ab,o |
| blood is universal donor | o |
| most common | o |
| least common | ab |
| universal recipiant | ab |
| ____% of ppl are RH postive | 85 |
| two forms of leukemia | myeloid leukemia and lymphoid leukemia |
| why are leukemia patients susceptible to infection? | too many WBC to fight off infection |
| why would leukemia patient become anemia | RBC count goes down |
| why does leukemia often cause person to bleed | too many cells are together and they soon start to split |
| one difference two types of leukemia | myeloid- bone marrow too many immature granulocyteslymphoid- cancerous |
Created by:
Mollie28
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