BIO 161 Lecture Notes - Lecture 24: Egg Cell, Cervix, Ejaculatory Duct
Document Summary
Epididymis: where the sperms is matured and stored. Bulbourethral gland: rinses ruine from urethra to neutralize ph. Seminferous tubules: in testes is where spermatogenesis begins. Hypothalamus secretes gnrh (gonadotropin releasing hormone) which goes to the anterior pituitary gland. Anterioir pituitary gland reacts to gnrh and releases fsh and lh. Lh is involved with production of testosterone in testes (by interstitial cells) +some testosterone will go into blood and help regulate how much gnrh is secreted (negative feedback) Fsh is important to keep more of the testosterone in the testes for sperm production. +inhibin, which is secreted when sperm levels are high, stop fsh from doing its job. Oviduct: will carry a fertilized egg to the uterus where fertilization occurs. Secondary oocyte and polar body are olvuated (released from follicle into oviduct) If fertilization occurs then second meiotic division occurs to form one ovum and three polar bodies.
