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, 3 - 400,000 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 oocyterelease (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