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Stack #4537630
| Question | Answer |
|---|---|
| erythrocytes | red blood cells, transport oxygen and carbon dioxide |
| leukocytes | white blood cells, protecting body against infection |
| plasma | fluid portion of blood, mostly water, contains electrolytes, hormones, gases, organic compounds |
| what are leukocytes | nucleated cells that protect the body from infection, produced in the red bone marrow |
| granulocytes | leukocytes that have protein granules in the cytoplasm-> neutrophils, basophils, eosinophils |
| agranulocytes | leukocytes that don't have granules -> monocytes, lymphocytes |
| hemostasis | stopping of blood flow |
| stages of hemostasis | vascular spasm, platelet plug formation, coagulation |
| vascular spasm | arterioles or venule has been broken or cut |
| platelet plug formation | platelets stick to exposed end of injured blood vessels |
| coagulation | actual formation of a blood clot -> most effective of all hemostatic mechanisms |
| thrombus | lodged clot in vessel, can clog blood flow |
| embolus | dislodged blood clot, flowing through blood |
| Type A blood | antigen A, antibody B |
| Type B | antigen B, antibody A |
| type AB | antigen A & B, antibody neither A nor B |
| type O | no antigen, antibody A & B |
| Describe Rh factor | positive presence of protein D on the membranes of red blood cells & negative Rh refers to the absence of the proteins |
| anemia | lack of red blood cells |
| hemolytic disease of the newborn | fetus is Rh +, mom is Rh - (mom's body believes its being attacked) |
| leukemia | cancer of the white blood cells |
| mononucleosis | noncancerous leukocyte disorder -> virus spread through saliva (kissing disease) |
| polycythemia | excessive number of red blood cells |
| components of the lymphatic system | tonsils, spleen, thymus, lymph nodes, bone marrow, lymph vessels |
| tonsils | large lymphoid located in the wall of the pharynx |
| spleen | largest collection of lymphatic tissue in the body -> filters blood and removes infected cells |
| thymus | helps to mature lymphocytes into T-cells |
| lymph nodes | filters and purifys lymph before it is returned to the blood |
| bone marrow | produces all blood cells types |
| lymph vessels | transports lymph through the body back to the blood |
| three ways lymph is moved throughout the body | pressure gradient -> skeletal muscle contractions-> valves |
| where does lymph rejoin the blood | subclavian vein |
| antigens | foreign protein capable of initiating on immune response and production of antibodies |
| antibodies | globular protein produced by the b- plasma cells which bind to antigens to promote destruction |
| what are the T-cell types | t-helper, t-killer, t-suppressor, t-memory |
| t-helper | white blood cells that were produced in the bone marrow, they attack antigens |
| t-killer | track down bacteria, fungi, protozoa, foreign tissues that contain antigens |
| t-suppressor | stop the responses of the t-cells when the level of antigens decreased |
| t-memory | store a code of the antigen which may be used if the antigen comes back |
| plasma cells | make and secrete large numbers of antibodies that will fight against antigens |
| memory cells | they send a second exposure to the same antigens |
| active immunity | when a person has been ex |
Created by:
user-1989369