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Visual Essentials of Anatomy & Physiology 1st Edition

Visual Essentials of Anatomy & Physiology (1st Edition)

Book Edition1st Edition
Author(s)Martini, Ober
ISBN9780321780775
PublisherPearson Higher Education
SubjectBiology
Section 18.1: The coiled seminiferous tubules of the testes are connected to the male reproductive tract
Section 18.2: Hormones play a key role in establishing and maintaining male sexual function
Section 18.3: The male reproductive tract receives secretions from the seminal, prostate, and bulbo-urethral glands
Section 18.4: The penis conducts semen and urine out of the body
Section 18.5: Clinical Module: Disorders of the prostate gland and testes are relatively common
Section EOS1: End of Section 1
Section 18.6: The ovaries and the female reproductive tract are in close proximity but are not directly connected
Section 18.7: Meiosis I in the ovaries produces a single haploid secondary oocyte that completes meiosis II only if fertilization occurs
Section 18.8: The uterine tubes are connected to the uterus, a hollow organ with thick muscular walls
Section 18.9: The entrance to the vagina is enclosed by external genitalia
Section 18.10: The mammary glands nourish the infant after delivery
Section 18.11: The ovarian and uterine cycles are regulated by hormones of the hypothalmus, pituitary gland, and ovaries
Section 18.12: Clinical Module: Female reproductive system disorders are relatively common and often deadly
Section 18.13: Clinical Module: Birth control strategies vary in effectiveness and in the nature of associated risks
Section EOS2: End of Section 2

Chapter 18, Section 18.1, Module Review, Exercise a

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Here is a tip:

The male reproductive system consists of gonads, glands, ducts, and an external genitalia.

Explanation

Each structure of the male reproductive system has its own function.

  • The scrotum holds the testes under a temperature more favorable for gamete production.
  • The seminiferous tubules of the testes are the sites of production for sperm cell, the male gamete.
  • Epididymides are coiled tubes on the posterior of each testis, serving as functional maturation sites for the sperm cells produced in the seminiferous tubules.
  • Ductus deferentia are a continuation of each of the tail of the epididymis and store sperms temporarily.
  • Ejaculatory duct conducts seminal fluids from seminal glands to the prostatic urethra.
  • The urethra conveys urine and semen out of the body.
  • Seminal glands (seminal vesicles) secrete the major fluid component of the semen.
  • The prostate secretes prostatic fluid which adds volume to the ejaculate.
  • Bulbo-urethral glands secrete alkaline mucus to neutralize acids in the urethra. These secretions also help to neutralize the acidic environment of the female reproductive tract.
  • The penis is the main organ for sexual intercourse, used to deliver the sperm out of the body.

Verified Answer

The male reproductive system includes the following structures:

  • scrotum
  • testes
  • epididymides
  • ductus deferentia
  • ejaculatory duct
  • urethra
  • seminal glands (seminal vesicles)
  • prostate
  • bulbo-urethral glands
  • penis
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