Which of the following is the innermost layer of a blood vessel?
A) tunica intima
B) external elastic membrane
C) tunica media
D) internal elastic membrane
E) tunica externa
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Question 2) The special type of cell division required to produce gametes is called
A) mitosis.
B) meiosis.
C) maturation.
D) capacitation.
E) fertilization.
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Question 3) In arteries, the thick layer of elastic fibers associated with the tunica intima is called the
A) tunica intima.
B) external elastic membrane.
C) tunica media.
D) internal elastic membrane.
E) tunica externa.
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Question 4) A primary spermatocyte matures into ________ spermatids having ________ chromosomes.
A) millions of; 46
B) four; 23
C) one; 46
D) millions of; 23
E) four; 46
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Question 5) The large vessels that return blood to the heart are called
A) arteries.
B) arterioles.
C) capillaries.
D) venules.
E) veins.
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Question 6) The pituitary hormone that stimulates the interstitial endocrine cells to secrete testosterone is
A) FSH.
B) LH.
C) ACTH.
D) GnRH.
E) GH.
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Question 7) Which layer of a blood vessel contains concentric sheets of smooth muscle tissue?
A) tunica intima
B) external elastic membrane
C) tunica media
D) internal elastic membrane
E) tunica externa
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Question 8) The role of FSH in males is to
A) stimulate the interstitial endocrine cells to produce testosterone.
B) stimulate the growth of male accessory glands.
C) initiate sperm production in the testes.
D) develop and maintain secondary sex characteristics.
E) influence sexual behaviors and sex drive.
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Question 9) After blood leaves the capillaries, it enters the
A) arteries.
B) arterioles.
C) capillaries.
D) venules.
E) veins.
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Question 10) The process of spermiogenesis produces
A) spermatogonia.
B) primary spermatocytes.
C) secondary spermatocytes.
D) spermatids.
E) sperm.
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