BMS 460 Study Guide - Quiz Guide: Gastroschisis, Sexual Differentiation, Omphalocele
26 Apr 2014
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Hypothalamus gnrh anterior pituitary fsh, lh. Fully grown oocyte surrounded by zona pellucida and granulosa cells. Oocyte, zona pellucida, granulosa cells, theca, and fluid-filled antrum. Oocyte surrounded by zona pellucida and granulosa cells. Spermatogonium (2n) mitosis primary spermatocytes (2n) first meiotic division. Secondary spermatocytes (n) second meiotic division spermatids (n) differentiation and maturation sperm cells (n) As male germ cells divide, they differentiate as a cohort between the same sertoli cells in a synchronized fashion. When spermiated into the lumen of seminiferous tubule, spermatozoa are immotile and infertile; they acquire the ability to move and fertilize an ovum during their transit through the epididymis. Primary oocyte 1st meiotic division (begins in utero, completed prior to ovulation) secondary oocyte. Secondary oocyte 2nd meiotic division (completed after fertilization) ovum. In the xy bipotential gonad, sry through the actions of sox9 induces testicular development, and opposes induction of the ovarian development pathway.
