PHSL 3051 Lecture Notes - Lecture 27: Corpus Luteum, Pubic Symphysis, Luteinizing Hormone
Document Summary
Urethra: urinary tract (short in length compared to males) Bacteria travel in retrograde (backwards) which leads to uti"s. Paired glands located in the pelvic cavity. Do not have a capsule, so they are able to release eggs. Unsure of which ovary the egg will come from each month. Fallopian tubes opening up right into the abdominal cavity. Vagina is acidic to keep harmful organisms from living, protects abdominal cavity from infections. Semen is alkaline to protect from acidic environment. In female fetus: stem cells called oogonia undergo mitotic division. At birth about 2-4 million oocytes (egg) in ovaries. Traditional view: all stem cells enter meiosis and stop, no remaining stem cells in ovary. Modern thinking: there may be some stem cells left. Under influence of fsh (follicle stimulating hormone), a few ovarian follicles containing primary oocytes develop. Dominant follicle is chosen about day 7. Once formed, corpus luteum lasts about 14 days. Follicle remnant (luteinizing hormone - lh) corpus luteum.
