Biology 1001A Study Guide - Quiz Guide: Arrector Pili Muscle, Respiratory Center, Neostigmine
Document Summary
Parasympathetic constricts decreases heart rate constricts bronchioles dilates bronchioles increases digestion decreases digestion promotes urination inhibits urination stimulate secretion inhibits secretion. Cooperative effects - parasympathetic causes vasodilation of penis and clitoris; sympathetic causes ejaculation and peristalsis of vagina. Central nervous system regulation of the autonomic ns. Hypothalamus - overall integration of autonomics: hypothalamus - can coordinate the regulation of heart rate, blood pressure, body temperature, water/electrolyte balance, hormonal activity, pleasure, rage, thirst, hunger, and sex drive. Iii. sympathetic - lateral & posterior hypothalamus parasympathetic - medial & anterior hypothalamus hypothalamus ----> reticular formation ----> preganglionic autonomics. Cerebral cortex and biofeedback - making patient aware of autonomically controlled functions (heart rate, blood pressure) can allow them to learn how to better control them. Abnormalities of autonomic control mechanisms hypertension - increased blood pressure due to overstimulation of sympathetics that results from stress; ne blockers to treat.
