HSCI 1120 Lecture Notes - Ejaculatory Duct, Paramesonephric Duct, Luteinizing Hormone
Document Summary
Testosterone: sperm producing capability and maintaining genitals, stimulating and maintaining the secondary sex characteristics (such as beard growth, stimulating the growth of bone and muscle. Follicle-stimulating hormone (fsh: controls sperm production. Luteinizing hormone (lh: controls testosterone production. Gonadotropin-releasing hormone (gnrh: secreted by hypothalamus. Regulate the pituitary which releases lh and fsh. Estrogen: brings many of the changes of puberty (stimulating the growth of the uterus and vagina, enlarging the pelvis, and stimulating breast growth, responsible for maintaining the membranes of the vagina and stopping bone and muscle growth. Prolactin: stimulates milk production by mammary glands after women gives birth. Oxytocin: stimulates ejection of that milk from the nipple, stimulates contractions of the uterus during childbirth. When gnrh is produced pituitary is stimulated to produce lh and fsh. Sex chromosomes carry information on how to differentiate in the course of development. Sex chromosomes direct the gonads to begin differentiation: ovaries develop later than testes.
