BIO 211 Lecture Notes - Lecture 19: Cytotoxic T Cell, Pancreatic Polypeptide, Pancreatic Islets
1 Dec 2020
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Document Summary
Effector cells are the relatively short-lived activated cells that defend the body in an immune response. Effector b cells are called plasma cells and secrete antibodies, and activated t cells include cytotoxic t cells and helper t cells, which carry out cell-mediated responses. T regulatory cells (suppressor t cells) are a subpopulation of t cells, which modulate the immune system, maintain tolerance to self antigens, and abrogate autoimmune disease. They are immunosuppressive, and generally suppress or down-regulate induction and proliferation of effector t cells. Glucagon: raises blood glucose by increasing liver glycogen breakdown. Beta cells insulin: lowers blood glucose by increasing glucose uptake and utilization by cells and. Peptide hormone identical to growth hormone inhibiting hormone (gh ih). Slows rates of food absorption and enzyme secretion in digestive tract. In adipose tissue, stimulates fat catabolism and release of free fatty acids. G cells stimulates stomach acid secretion, motility and emptying.
