Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
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Textbook Question
Chapter 41, Problem 9SQ

A male attains an erection when ___ .

  1. a. muscles running the length of the penis contract
  2. b. Leydig cells release a surge of testosterone
  3. c. the posterior pituitary releases oxytocin
  4. d. spongy tissue inside the penis fins with blood.
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Menopausea. develops when follicles become less responsive to FSH and LH.b. results from elevated estrogen levels in 40- to 50-year-old females.c. occurs because too many follicles develop during each cycle.d. results when follicles develop but contain no oocytes.e. occurs because FSH and LH levels decline.
Which of the following statements correctly describes the function of the Sertoli cells? a. Stimulate spermatogenesis b. Support the developing sperm cells c. Control the overproduction of testosterone d. Store testosterone in the testes
Prior to ejaculation, sperm are stored primarily in:- a. the seminiferous tubules. b. the epididymis. c. the seminal vesicles. d. the bulb of the penis. e. the ejaculatory ducts
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