Psychology 2075 Lecture Notes - Lecture 5: Hernia, Paramesonephric Duct, Secondary Sex Characteristic
20 Dec 2017
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Document Summary
Chapter 5 - sex hormones, sexual difference and. Hormones - chemical substances secreted by the endocrine glands into the bloodstream: examples of endocrine glands are thyroid, adrenals and the pituitary gland, pituitary gland - small endocrine gland below the hypothalamus; it regulates the levels of sex. Follicle-stimulating hormone - stimulates follicle development in females and sperm production in males: not controlled by hpg, but by negative feedback loop between inhibin and testosterone (or estrogen) Increases in temperature turn off the thermostat, and decreases turn it on. Functions for stimulating and maintaining the secondary sex characteristics, such as beard growth, maintaining the genitals and their sperm-producing capability, and bone and muscle growth: gonads are the sex glands (testes in males, ovaries in females) Inhibin - substance secreted by the testes and ovaries that regulate fsh levels: theoretical interest because it works as a male contraceptive in a way; it suppresses fsh production which in turn suppresses sperm production.
