Page 470 - Anatomy and Physiology of Farm Animals, 8th Edition

Chapter 25

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Physiology of Male Reproduction

Seminiferous Tubules and Spermatogenesis Learning Objectives
Seminiferous Tubules
Germ Cells and Spermatogenesis • Define and be able to explain the signifi-
Spermatozoa Morphology and cance of the bold italic terms in this
chapter.
Spermatogenesis • Illustrate the mitotic and meiotic divi-
Rates and Timing of Spermatogenesis sions that result in haploid spermatozoa.
Epididymis Be sure to include genetic crossover and
Semen and Semen Technology whether the cell has a haploid or diploid
Hormones of Male Reproduction number of chromosomes (n).
Endocrine Regulation of Testicular Function • Describe how and where a round sper-
matid cell becomes an elongated, fully
Testosterone and Its Effects formed spermatozoa. Differentiate
Erection and Ejaculation between the role of the testis versus
epididymis.
• Differentiate the role of the interstitial cells
versus sustentacular cells for spermato-
genesis. Where are these cells located,
which gonadotropin do they bind, and
what hormones do they produce?
• Describe the exocrine glandular secre-
tions and cellular components present
in an ejaculate. How can the characteris-
tics of semen predict fertility?
• Regardless of the penis type (musculo-
cavernous or fibroelastic), describe the
neuroendocrine control of penile
erection.

Anatomy and Physiology of Farm Animals, Eighth Edition. Anna Dee Fails and Christianne Magee.
© 2018 John Wiley & Sons, Inc. Published 2018 by John Wiley & Sons, Inc.
Companion website: www.wiley.com/go/fails/anatomy

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