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A & P Chapter 6
| Question | Answer |
|---|---|
| What is lymph | A thin plasma-like fluid formed from interstitial or extracellular fluid |
| Foreign material such as debris or bacteria is filtered from the lymph in the | Lymph nodes |
| The lymphatic system helps do what | Absorb fat from the digestive tract, maintain fluid balance in the body, Fight infection |
| In the major blood capillary beds, the internal hydrostatic pressure causes a loss of how much fluid into the interstitial spaces | 3-4ml/min |
| What happens to the fluid that leaks out of the vessels | It must be returned to the central venous circulation via the Lymphatic vessels. |
| Name the 2 great lymph vessels | Thoracic ductlymphatic duct |
| What are the 2 roles of a lymphocyte | Fight infection, provide immunity to certain infections |
| Diffuse lymphatic tissue is what | tissue with no clear bounary that blends with surrounding tissues and contains lymphocytes and other cells |
| Name the 3 sets of lymphatic oragans that comprise the tonsils | the palatine tonsilsthe pharengeal tonsilslingual tonsils |
| What does the thymus produce | lymphocytes |
| The thymus plays a major role in what? | immunity |
| What other system is integrally reelated to the lymphatic system | the immune system |
| what is nonspecific immunity | an immune response that is predictable each time the body is exposed to a perticular challenge. The rapidity and strength of the response is the same every time |
| What is Specific immunity | the response to a given substance that is faster and stronger after each subsequent exposure. |
| Leukocytes move toward areas of bacterial invasion or forgien bodies via a process known as | Chemotaxis |
| Which leukocytes are usually the first cells to enter infected tissue | Neutrophils |
| What larger leukocyte cells are able to leave the bloodstream and enter diseased tissue | Macrophages |
| Name the other Leujocytes that may play a role in fighting infection | Basophils,Eosinophils Mast cells |
| Forgien substances are known as | Antigens (allergens) |
| Antibodies that are found in the plasma are produced by | B-lymphocytes, also called B-cells |
| What are the 5 classes of antibodies | IgG,IgM,IgA,IgE,IgD |
| IgG comprises how much of the total serum antibodies | 80-85% |
| Where is IgA found | IgA is found in Saliva, Tears, and on mucus membranes |
| Where is IgD found | in cell membranes of B-cells. |
| IgE comprises how much of total serum antibody | .002% |
| IgM is responsible for what type of reactions | Blood transfusion |
| What cells carry out most cell-mediated immune functions | T effector cells |
| What cells aid the T effector cells | T helper cells |
| What cells limit the specific immune response | T surpressor cells |
| When activated by an antigen, T cells differentiate into what | T memory cells, and T effector cells |
| What cells remain in the body ready for a second challenge | Tmempry cells |
| T effector cells produce | lymphokines |
Created by:
klindley
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