PSL300H1 Lecture Notes - Lecture 2: Female Reproductive System, Granulosa Cell, Follicular Phase
Document Summary
Components and regulation of the menstrual cycle. A 28-year-old male athlete has been taking high levels of androgenic (i. e. anabolic) steroids for several years. The steroids have increased his competitiveness (although he would not be able to compete at national or international levels). Take home questions: predict his blood levels of lh, fsh and endogenous testosterone in comparison to normal. All below normal from high androgen negative feedback: what changes to the reproductive system would you expect to observe? atrophy of testes and infertility. At puberty, the ogosis divide one is discarded. During fetal life, oogonia (diploid) develop, which enter, but do not complete, meiosis i. Born with ~1 2 million primary oocytes. After puberty, one primary oocyte completes meiosis i and enters meiosis ii to become a secondary oocyte. The secondary oocyte completes meiosis ii only if it is fertilized. Girl born with all oocytes in place, approx.
