Anatomy and Cell Biology 3319 Lecture Notes - Lecture 6: Dense Irregular Connective Tissue, Folliculogenesis, Zona Pellucida

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Suggested reading: pawlina 7th ed. p. 834 848 (6th ed p. 830 845) Walnut shaped, 3cm long in humans: fallopian/uterine tube, uterus, vagina, broad ligament sheet of parietal peritoneum that drapes over the ovaries, Anterior wall of the ovary is connected to the broad ligament. Fetus: ~5 million oocytes migrate from yolk sac to the ovary and are arrested in prophase i: primary oocytes formed at month 4, primordial follicles formed by month 7. Puberty: ~400 000, only 400-500 mature fully. Ovulation: meiosis i completed: secondary oocyte the daughter cell that receives most of the cytoplasm; arrested in metaphase ii, polar body the daughter cell that receives minimal cytoplasm. Fertilization: meiosis ii completed: one daughter cell forms mature ovum while the other becomes the second polar body. Cortex: germinal epithelium simple cuboidal, tunica albuginea dense irregular connective tissue between the germinal epithelium and follicles, ovarian follicles oocyte + associated follicular cells, stroma fibromuscular tissue between the follicles.

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