8.5: Reproductive Hormones Male Reproductive System Female Reproductive System.

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8.5: Reproductive Hormones Male Reproductive System Female Reproductive System

Male Reproductive System

Male Hormones Aldosterone Testosterone (produced by interstitial cells) Stimulates spermatogenesisspermatogenesis Maturation of testes, penis and sex drive Facial/body hair, lowering of voice, muscle development, secretion of body oils Hormonal control of Sexual behaviour

Male Hormones Cont’d Gonadotropin Produced by pituitary & regulates testis FSH (Follicle-Stimulating Hormone) Stimulates sperm production in seminiferous tubules LH (Luteinizing Hormone) Production of testosterone by interstitial cells GnRH (Gonadotropin-Releasing Hormone) Stimulates pituitary to release FSH and LH Secreted by hypothalamus during puberty

Male Hormone Control

Female Reproductive System

Oogenesis and Ovulation Each ovary contain approximately follicles (contain egg and release estrogen) at puberty. Between the ages of eggs will mature. At menopause, only a few follicles remain and this marks the end of reproductive life. Meiosis 1 occurs during ovulation, meiosis 11 occurs after ovulation. Ovulation – Release of egg from follicle Corpus Luteum – mass of follicle within ovary that releases estrogen and progesterone.

Menstrual Cycle

Female Hormones

Female Hormone Control

Male/Female Hormones Androgens (male sex hormones) and Estrogen (female sex hormones can be produced by either gender. Male characteristics result because the levels of androgen exceed the levels of estrogen. Questions: pp. 399 #1-3, 5, 7, 9 – 12

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