11:067:327 Study Guide - Midterm Guide: Alpha-Fetoprotein, Defeminization, Kisspeptin

• School: Rutgers University
• Department: Animal Science
• Course: 11:067:327
• Professor: C Bagnell

Document Summary

False, a male has only a tonic center. Threshold number of sperm in ejaculation (a minimum. What defines puberty in a male? number of sperm for fertilization) True or false: a male may be pubertal, but if not fully grown, reproduction fails. To exhibit estrous behavior, what needs to happen? estrogen. Because the first ovulation isn"t primed with estrogen there is no behavior exhibited. True or false: a male has both a tonic and surge center. Why does no surge center develop in males? kisspeptin neurons. Fetal ovary produces estrogens that bind to alpha fetoprotein that prevents estrogens from crossing the blood-brain barrier, where estradiol cannot affect the hypothalamus therefore defeminization is prevented. Group of neurons in hypothalamus working together: detection and integration of internal and external signals, triggers pulsatile release of gnrh, kndy neurons. How are secretions from the surge and tonic center before puberty? and frequency.