Nurs 208 Study Guide Questions And Correct Answers

hormones produced in the adrenal gland {Ans: - adrenal cortex secretes setoird hormones that are essential for life - adrenal medulla secretes 3 catecholamine hormones: epinephrine, norepinephrine and dopamine}tunica media {Ans: the middle layer of the blood vessel - thickness and structure depends on the type of blood vessel - smooth muscles that vasoconstrict/vasodialates - in the arteries there is an elastic membranes which allow for continous pumping motions}velocity of blood flow {Ans: Changes as travels through systemic circulation Inversely related to total cross-sectional area - Fastest in aorta; slowest in capillaries; increases in veins - Slow capillary flow allows adequate time for exchange between blood and tissues}interventricular septum {Ans: myocardial muscle separates the two ventricles}control of secretions by the anterior pituitary gland {Ans: under the influence of the hypothalamus - pituitary hormones are released/regulated by the hypothalamus tropic hormones - "releasing hormones"}positive inotropic effect {Ans: stimulation of nueral networks (NE and EPI) which produces tachycardia and systemic vasoconstriction - sudden removal of sympathetic influence will produce vasodilation and hypotension - sympathetic activation increrases chornotrophy, dromotrophy, inotropy}