PHPY 302 Study Guide - Midterm Guide: Smooth Muscle Tissue, Cell-Mediated Immunity, Shear Rate
23 Nov 2016
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Steve hall mon oct 17 19:34:29 pdt 2016. Role of lymphocyte t cells cell mediated immunity. Macrophages serve 2 purposes present antigens to lymphocytes; phagocytose pathogens and cellular debris (clean up) 2 types of granules in platelets are what do they contain? dense core granules - atp, adp, serotonin, ca2+; alpha granules - platelet brinogen, clotting factor 5. Hemostasis is the process of coagulation to stop bleeding. Blood velocity = ? shear stress / shear rate. A decrease in temp will do what to the viscosity of blood increase it. 4 methods by which hemostasis is achieved (cessation of bleeding) increased tissue pressure; vasoconstriction; platelets aggregate to form plug; clot reinforces platelet plug. hemostasis causes vaso constriction. Tissue pressure decreases for hemostasis, t/f false. it increases. hemostasis: how do the blood vessels know to constrict? damaged endothelial cells release vaso-constricting molecules.
