Human Anatomy and Physiology Reproduction in females.

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Presentation transcript:

Human Anatomy and Physiology Reproduction in females

Reproduction Production of egg and nutrition of embryo Hormones: estrogen (estradiol), progesterone, gonadotropic hormones 2M eggs at birth, ,000 at puberty and 400 released during lifetime Menopause - follicles degenerate

Egg production (oogenesis)

Ovarian cycle Primordial follicle (1) Primary follicle (2) Secondary follicle (3-5) Vesicular follicle (6) Secondary oocyte release (7) Corpus luteum (8) Corpus albicans (9)

Ovarian cycle Two Phases Follicular (variable) Luteal (fixed - always 14 days duration)

Ovarian cycle control

Gonadotropic hormones Fluctuations in levels throughout the ovarian cycle Time (days)

Ovarian hormones Fluctuations in levels throughout the ovarian cycle Time (days)

Uterine cycle Fluctuations in thickness of uterine wall