PSYCH 212 Chapter Notes - Chapter 8: Posterior Pituitary, Circulatory System, Median Eminence
1 Feb 2017
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Document Summary
The endocrine system cloacal exstrophy - a rare medical condition in which xy individuals are born completely lacking a penis. Hormones initiate actions by binding to receptor molecules second messenger - a slow-acting substance in a target cell that ampli es the effects of synaptic or hormonal activity and regulates activity within the target cell. Steroids hormones easily pass through cell membranes, so their receptors are generally located inside the target cell knockout organism - an individual in which a particular gene has been disabled by an experimenter. Feedback control mechanisms regulate the secretion of hormones negative feedback - the property by which some of the output of a system feeds back to reduce the effect of input signals. Two anterior pituitary tropic hormones act on the gonads. Hormonal and neural systems interact to produce integrated responses four kinds of signals are possible between neurons and endocrine cells.
