8.5: reproductive hormones male reproductive system female reproductive system
TRANSCRIPT
8.5: Reproductive Hormones
Male Reproductive System
Female Reproductive System
Male Reproductive System
Male Reproductive System
Male Hormones
Aldosterone Testosterone (produced by interstitial cells)
Stimulates spermatogenesis 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
Female Reproductive System
Oogenesis and Ovulation Each ovary contain approximately 400 000 follicles
(contain egg and release estrogen) at puberty. Between the ages of 12-50 400 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