notes The Reproductive System.docx

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**The Reproductive System** **Sexual reproduction-** involves sex cells or gametes (sperm & egg) formed by testes and ovaries ![](media/image2.png)**[Fertilization]** produces one cell (a zygote)with one set of chromosomes from each parent **Scrotum** - Sac of loose skin, fascia Temperature re...

**The Reproductive System** **Sexual reproduction-** involves sex cells or gametes (sperm & egg) formed by testes and ovaries ![](media/image2.png)**[Fertilization]** produces one cell (a zygote)with one set of chromosomes from each parent **Scrotum** - Sac of loose skin, fascia Temperature regulation of testes Elevates testes on exposure to cold Warmth reverses the process **Testes** Paired oval glands measuring 2 in. By 1in. **Hormonal Control of Male Physiology** Spermatogenesis Hypothalamus secretes gonadotropin releasing hormone (GnRH) Anterior pituitary secretes FSH and LH FSH causes Sertoli cells to secrete ABP and inhibin LH causes interstitial cells to secrete testosterone ABP and testosterone stimulate spermatogenesis **Male Glands** **Ovulation** Follicle ruptures releasing oöcyte **Corpus Luteum secretes:** intercourse Hormone (LH) FSH from anterior pituitary stimulates follicle growth -

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