PHGY 209 Lecture Notes - Lecture 10: Myeloid Tissue, Phagolysosome, Antibody
15 Apr 2018
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Lecture 10: unlike erythrocytes, leukocytes can leave the circulatory system to enter the tissues where they function. So called because of their extentions, but they are not dendrites. They also activate t cells: mast cells- bone marrow cells that have entered the blood and then left the blood vessels to enter connective tissue where they differentiate and undergo cell division. Their functions occur at the site at which they are secreted. They link the different components of the immune system together by acting as a chemical communication network. Innate immune responses defend against foreign cells or matter without having to recognize specific identities. Plasma membrane receptors in certain immune cells and a variety of circulating proteins can bind to carbs and lipids at crucial steps in innate responses, while in adaptive ones, specific proteins produced by the foreign cell are recognized. Peptides generated in the infected area by enzymatic actions on proteins that circulate in the plasma.
