Animal_Science_9-23-08

Animal_Science_9-23-08 - Epididymis-provides both a pathway...

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Animal Science 9-23-08 Reproductive Physiology The role of the male = less complicated than that of the female Whether boar to stallion, they must be able to: Produce ample amounts of viable sperm Be willing and able to deliver sperm Male reproductive system consists of: The testicles, which produce sperm The duct system, which delivers sperm and semen The accessory glands, which produce fluid to lubricate, buffer and carry sperm The penis, or male organ of copulation, which deposits the semen in the female Testicles-major testosterone producer Seminiferous tubules-spermatozoa production Vas deferens-leads from epididymis to urethra Rete testis-where seminiferous tubules converge Sperm vs. Semen Sperm is from the testicles whereas semen is both sperm and seminal fluid Acrosome-cap on the head of the sperm
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Unformatted text preview: Epididymis-provides both a pathway and storage for immature sperm Bulbourethral gland-a mixing of sperm and seminal fluid Sperm are stored in the head of epididymis until ejaculation Leydig cells produce testosterone Sertoli cells (nurse cells) is where sperm stay to mature Controlling the Production of Sperm: Regulated by production of testosterone, which is regulated by pituitary hormone, follicle stimulating hormone (FSH) and leuteinizing hormone (LH) Both FSH and LH are time dependent, i.e. sexual maturity and are further regulated by Gonadotroprin Releasing Hormone (GnRH) GnRH- hypothalamus to base of brain Pipuitary to release FSH and LH FSH testicles sperm production LH Leydig testosterone...
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Animal_Science_9-23-08 - Epididymis-provides both a pathway...

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