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Blood, lymph & immune Review
Term | Definition |
---|---|
Describe platelets | Thrombocytes Smallest element in blood Fragments of cells Initiate blood clotting Hemostasis |
Describe red blood cells | Transport oxygen and carbon dioxide Most numerous of circulating blood cells Develop hemoglobin Live about 120 days Shaped like biconcave |
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 | Protects the body from pathogens Remove debris Aid in the healing process Diapedesis Initiate inflammation and immune response |
List autoimmune disease | Myasthenia gravis Rheumatiod arthritis AIDS Allergies Thrombocytopenia vasculitis systemic lupus erythematosus |
What is the function of histamines | Initiate the inflammatory process |
What are the two ducts of the lymph system | Right lymphatic duct Thoracic duct |
What are the four types of T cells | Cyctotoxic Helper Suppressor Memory |
What are the function of the lymph system | Maintaining fluid balance Transporting lipids Filtering and removing unwanted or infectious material |
What is an allergy | acquired abnormal immune response |
What is hematology | Study of blood cells, blood-clotting mechanisms |