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2011 Male Reproductive Physiology

2011 Male Reproductive Physiology - Dr Kennon Garrett MALE...

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E-91 Dr. Kennon Garrett MALE REPRODUCTIVE PHYSIOLOGY Reading: Vander et al., Human Physiology, 12 th ed. pp. 587-602. Behavioral Objectives 1. List the steps in mitosis and meiosis. Know when the mitosis and meiosis occurs in males and females. 2. List anatomical structures of the male reproduction system and list their functions. 3. List the steps in spermatogenesis. 4. List the functions of Sertoli and Leydig cells. 5. List steps involved in erection, emission and ejaculation and know how the parasympathetic and sympathetic nervous systems control these processes. 6. Describe the function of the hormones in the male reproduction system and describe how their release is regulated. I. Introduction A. Reproductive Organs 1. Testes 2. Ovaries
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E-92 B. Functions of gonads 1. Produce germ cells 2. Secrete sex steroids C. Accessory reproductive organs – ducts and glands emptying into the ducts the used to transport sperm and eggs from gonads D. The reproductive axis (Fig. 17-1) 1. Hypothalamus - neurons release Gonadotropin Releasing Hormone (GnRH) in bursts. 2. Anterior pituitary releases gonadotropins FSH and LH. 3. Gonads - gonadotropins have 2 actions at gonads a. gametogenesis b. release steroid sex hormones.
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