Psychology 2075 Lecture Notes - Luteal Phase, Sex Steroid, Corpus Luteum

• School: Western University
• Department: Psychology
• Course: Psychology 2075
• Professor: Prof

Document Summary

Chapter 5: sex hormones, sexual differentiation, and menstruation: prenatal period= where structural differences between male and females arise process called prenatal sexual differentiation. High levels of progesterone inhibit lh, corpus luteum degenerates (sharp decline in estrogen/progesterone at end of phase) Falling levels of estrogen stimulate fsh and starts again: menstruation shedding of the uterine lining (endometrium) Gonads: gonads become testis at 7 weeks, y chromosome= sex determining region (sry, if tdf (testis-determining factor) is present= male if not female, x chromosome= genes that control ovaries and testes (sperm making) Must be corrected by surgery or hormonal therapy. Optimal before age 5 otherwise man will be sterile (high temp of testes inside body stop sperm making: inguinal hernia may reopen later in life, passageway through intestine and enter scrotum. Homologous organs: homologous=developed from same embryonic tissue, analogous= similar function (see table 5. 1 page 111, ex: ovaries and testes homologous= develop from undifferentiated gonad.