Immunology 01- Lymphatic system during infection Flashcards
def. lymphatic system
consists of a branching network of vessels, numerous lymph nodes, the bone marrow and several organs; is involved with both innate and adaptive immunity
def. lymph nodes
little round organs packed with macrophages and white blood cells lymphocytes
def. lymph
fluid carried in the lymphatic vessels, similar to the interstitial fluid that surrounds body cells but contains less oxygen and fewer nutrients
lymphatic system association to circulatory system
if an infectious agent gets inside the body, it usually winds up in the circulatory system. from there it is carried into the lymphatic system which can usually filter it out. the filtered fluid can then be recycled into the circulatory system
lymphatic system functions (2)
- to return the tissue fluid back to the circulatory system
- to fight infection