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Published bySpencer Gibbs Modified over 9 years ago
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We have got to be mature like cheddar used in this delicious snack Paper Time
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Reproduction Male Reproductive System Female Reproductive system
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Primary Sex Organs vs. Accessories Primary makes gametes Accessories include – ducts, – genatalia – glands
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Lets start with the easy stuff 1st Testicles Penis Seminal Vesicles Epididymis Vas Deferens Ejaculatory Duct Prostate Gland Bulbourethral gland Leydig Cell Sertoli Cell
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Mitosis vs Meiosis review Meiosis Mitosis
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Describe Structure and Function of the gonads and accessories Testicles Penis Seminal Vesicles Epididymis Seminiferous Tubules Vas Deferens Ejaculatory Duct Prostate Gland Bulbourethral gland Chapter 27
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Spermatogenesis Starts with 1 “spermatocyte” – Primary germ line End up with 4 spermatids How many chromosomes are in 1 spermatocyte? How many chromosomes are in 1 spermatid?
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This meiosis happens in seminiferous tubules
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Seminiferous tubules Lumen surounded by Sertoli Cells Help maintain liquid environment of lumen for sperm to develop Prevent blood from traveling to lumen
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Gap Junctions of sertoli cells Mitosis of primary spermatocye happens above gap junction Meiosis happens below gap junction between cell membranes
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Hormones involved Sertoli cells release messengers in response – Testosterone (T) – Follicle Stimulating Hormone (FSH) – Luetenizing Hormone (LH) – Gonadotrpoin Releasing Hormone (GnRH)
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Leydig Cells The ones that generate and release Testosterone (T) T essential for proliferation and differentiation of sperm
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Hypothalamus – Pituitary Gland
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Quick write: How does the hypothalamus affect the testis?
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Spermatogenesis Must be cooler than body temperature
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Erectile Tissue
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