PHS 3341 Chapter Notes - Chapter 17.1: Human Chorionic Gonadotropin, Vulva, Oviduct
Document Summary
Sexual reproduction is the process of producing offspring for the purpose of the species survival. Reproductive system: does not contribute to homeostasis, not necessary for survival. Reproductive capability depends on relationships between: hypothalamus, anterior pituitary, reproductive organs, target cells of sex hormones. X-inactivation (lyonization) a copy of the x chromosome in females is. Dosage compensation equalize the expression of genes among the sexes, 6-8 weeks is when differentiation starts: females normally have 1 barr body, males have 0. Testes give rise to seminiferous tubules and leydig cells. Gametes reproductive or germ cells: males testes perform 2 functions when mature, female ovaries perform 2 functions when mature: Secreting sex hormones estrogen and progesterone. Secondary reproductive external characteristics such as men"s broad: testosterone, estrogen control development, androgens testosterone (males) adrenocortical shoulders, females curvier hips. Accessory sex glands are glands that empty secretions into the reproductive.
