BIOL 030 Lecture Notes - Lecture 30: Haematopoiesis, Natural Killer Cell, Macrophage
17 Sep 2020
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Receives lymph from right arm, right side of head and thorax; empties into right larger and longer, begins as a prominent sac in abdomen called the cisterna chyli. Receives lymph from below diaphragm, left arm, left side of head, neck, and thorax; empties into left. Large lymphocytes that attack and destroy bacteria, transplanted tissue, host cells infected with viruses or that have turned cancerous. Activation causes proliferation and differentiation into plasma cells that produce antibodies. Macrophages immune system to the presence of the enemy. Large, avidly phagocytic cells of connective tissue. Phagocytize tissue debris, dead neutrophils, bacteria, and other foreign matter. Process foreign matter and display antigenic fragments to certain t cells alerting. Branched, mobile apcs found in epidermis, mucous membranes, and lymphatic. Alert immune system to pathogens that have breached the body surface. Branched stationary cells that contribute to the stroma of a lymphatic organ organs. Aggregations of lymphocytes in the connective tissues of mucous membranes and various organs.
