CT203 Study Guide - Midterm Guide: Chagas Disease, Enzootic, Good Works
Document Summary
Lymph nodes are: under your arms, under your jawline, back of the neck and in the groin: like the drainage tiles around your house. Lymph is the luid in tissue spaces: it carries protein molecules and other substances back to the blood. Lymphatic vessels permit one-way movement of lymph: transportation is ultimately to the bloodstream. Used for fat transportation, proteins, water preservation: lymphatic capillaries are tiny, blind-ended tubes. Swelling (edema) of tissues caused by blockage of lymph vessels: lymphangitis: inlammation of lymph vessels, may progress to septicemia, elephantiasis: severe lymphedema of limbs resulting from parasite infestation of lymph vessels (ilariasis) Located in clusters along the pathway of lymphatic vessels. Functions include defense and white blood cell formation. Filter lymph of bacteria, cancer cells, and damaged tissue cells; prevents them from entering blood circulation; helps to localize infection. Lymphoid tissue organ that plays a key role in immunity: produces t-lymphocytes (t cells: helper t cells and cytotoxic killer t.
