The muscular layer in the wall of a blood vessel is the tunica
A) intima.
B) externa.
C) media.
D) interna.
E) adventitia.
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Question 2) The erectile tissue that extends down into the glans penis is the
A) corpus spongiosum.
B) corpora cavernosa.
C) preputial glands.
D) smegma.
E) crus of penis.
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Question 3) Frank is experiencing difficulty urinating, painful urination, low back pain and a slight fever. The doctor prescribes antibiotics and Frank recovers. It is likely that Frank suffered from
A) impotence.
B) prostate cancer.
C) prostatitis.
D) a vasectomy.
E) a circumcision.
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Question 4) A tumor on the adrenal gland increasing catecholamine release will cause all of the following cardiovascular responses except
A) decreased heart rate.
B) increased contractility.
C) increased venous return.
D) increased preload.
E) decreased ESV.
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Question 5) The rete testis is connected to the epididymis by
A) efferent ductules.
B) the spermatic cord.
C) the tunica albuginea.
D) the tunica vaginalis.
E) the straight tubules.
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Question 6) John encounters a bear while hiking. His heart will respond in all of the following ways except
A) increasing preload.
B) increasing heart rate.
C) increasing contractility.
D) decreasing heart rate and contractility.
E) increasing venous return.
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Question 7) Each lobule contains approximately ________ seminiferous tubules.
A) 4
B) 100
C) 400
D) 800
E) 1500
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Question 8) Hypertension increases ________ causing stroke volume to ________.
A) afterload; increase
B) afterload; decrease
C) preload; increase
D) preload; decrease
E) contractility; increase
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Question 9) For normal sperm development, the testes must be kept about
A) the same temperature as the brain.
B) 1.1C cooler than core body temperature.
C) 1.1C warmer than core body temperature.
D) 4.8C cooler than core body temperature.
E) 4.8C warmer than core body temperature.
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Question 10) Positive inotropic drugs such as glucagon and thyroid hormone cause
A) decreased heart rate.
B) increased heart rate.
C) increased contractility.
D) decreased contractility.
E) asystole.
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