Reproductive System

Reproductive System - Reproductive System Male reproductive...

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Reproductive System Male reproductive system - The male gonads (testes) produce sperm and lie within the scrotum The testis contain two compartments: Seminiferous tubules (90% of weight) Interstitial compartment Each testis is surrounded by two tunics: The tunica vaginalis, derived from peritoneum The tunica albuginea, the fibrous capsule of the testis Seminiferous tubules: Produce the sperm Converge to form the tubulus rectus Tubulus rectus conveys sperm to the rete testis Spermatogenesis The process from spermatids to spermatozoa is called spermiogenesis. Testosterone required for spermiogenesis in adult. Spermatocytes to Spermatids Primary spermatocytes undergo meiosis I, forming two haploid cells called secondary spermatocytes Secondary spermatocytes undergo meiosis II and their daughter cells are called spermatids Spermatids are small round cells seen close to the lumen of the tubule Spermatozoa have 3 parts: oval-shaped head: contains the Nucleus (The 23 Chromosomes) and enzymes that help the sperm penetrate the protective layers that surround and Egg Cell midpiece or body: contains mitochondria for energy that is required for sperm to reach an Egg tail: for swimming, a typical flagellum produced by a centriole Male reproductive tract Testis epididymis ductus deferens ejaculatory duct
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This note was uploaded on 05/01/2008 for the course KIN 324K taught by Professor Farrar during the Spring '08 term at University of Texas.

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Reproductive System - Reproductive System Male reproductive...

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