click below
click below
Normal Size Small Size show me how
blood,lymph&immune
REVIEW
| Question | Answer |
|---|---|
| Describe platelets | -thrombocytes -smallest elements in blood -fragments of cells -initiate blood clotting -hemostasis |
| Describe red blood cells | -transport O2/CO2 -most numerous circulating cell -develop hgb -shape like biconcave disks -live about 120 days |
| Describe the spleen | -acts as a filter -destroys old RBC's -stores healthy blood cells |
| Describe the thymus | -responsible for cellular immunity -transforms lymphocytes into T cells |
| Describe the tonsils | -masses of lymphatic tissue -protect upper respiratory structures |
| Describe white blood cells | -protect the body from pathogens -remove debris -aid in healing process -diapedesis -initiate inflammation and immune response -phagocytic -some have granules |
| List autoimmune diseases | -AIDS -allergies -MG -RA -thrombocytopenia -vasculitis -SLE |
| What is the function of histamines | -initiate the inflammation process |
| What are the two ducts of the lymph system | -right lymphatic duct -thoracic duct |
| What are the four types of T cells | -cytotoxic -helper -suppressor -memory |
| What are the functions of the lymph system | -maintain fluid balance -transport lipids -filter and remove unwanted infectious material |
| What is an allergy | -acquired abnormal immune response |
| What is hematology | -study of blood cells, blood-clotting mechanisms |
| What is heparin | -acts to prevent blood from clotting |
| Where do blood cells develop from | -stem cells |
| edema | abnormal accumulation of fluids in the intercellular spaces of the body |
| hemosiderosis | abnormal increase of iron in the blood |
| leukocytes | abnormal increase in white cells |
| lymphadenopathy | any disease of the lymph nodes |
| antiserum | blood serum that contains antibodies |
| megakaryocyte | cell with a large nucleus; fragments become platelets |
| pernicious anemia | chronic, progressive anemia due to lack of sufficient vitamin b12 |
| phagocytosis | condition of ingesting cells |
| leukopenia | decrease in white blood cells |
| thrombolysis | Destruction of a clot |