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Paper Time. We have got to be mature like cheddar used in this delicious snack. Female Reproductive system. Male Reproductive System . Reproduction . Primary Sex Organs vs. Accessories. Primary makes gametes Accessories include ducts, genatalia glands.
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Paper Time We have got to be mature like cheddar used in this delicious snack
Female Reproductive system Male Reproductive System Reproduction
Primary Sex Organs vs. Accessories • Primary makes gametes • Accessories include • ducts, • genatalia • glands
Lets start with the easy stuff 1st • Testicles • Penis • Seminal Vesicles • Epididymis • Vas Deferens • Ejaculatory Duct • Prostate Gland • Bulbourethralgland • Leydig Cell • Sertoli Cell
Mitosis vs Meiosis review • Meiosis • Mitosis
Describe Structure and Function of the gonads and accessories • Testicles • Penis • Seminal Vesicles • Epididymis Seminiferous Tubules • Vas Deferens • Ejaculatory Duct • Prostate Gland • Bulbourethralgland Chapter 27
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?
Seminiferous tubules • Lumen surounded by Sertoli Cells • Help maintain liquid environment of lumen for sperm to develop • Prevent blood from traveling to lumen
Gap Junctions of sertoli cells • Mitosis of primary spermatocye happens above gap junction • Meiosis happens below gap junction between cell membranes
Hormones involved • Sertoli cells release messengers in response • Testosterone (T) • Follicle Stimulating Hormone (FSH) • Luetenizing Hormone (LH) • Gonadotrpoin Releasing Hormone (GnRH)
Leydig Cells • The ones that generate and release Testosterone (T) • T essential for proliferation and differentiation of sperm
Spermatogenesis • Must be cooler than body temperature