The adult heart is roughly the size of
A) the liver.
B) a man's clenched fist.
C) the gallbladder.
D) the hand of a 10-year-old.
E) the brain.
B
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The relative constancy of core temperature is made possible by multiple thermoregulatory mechanisms coordinated by the:
a. medulla b. heart c. thyroid d. thalamus e. hypothalamus
In addition to massive bleeding, injury to a carotid or vertebral artery would MOST likely cause:
A) hemiparalysis. B) an air embolism. C) severe bradycardia. D) cerebral hypoxia.
Which of the following is NOT a major opening into the right atrium?
A. pulmonary vein B. inferior vena cava C. superior vena cava D. coronary sinus
In the testes, the sustentacular (sertoli) cells secrete _____, and the interstitial cells secrete _____.
a. inhibin and progesterone; testosterone b. progesterone; testosterone and inhibin c. inhibin; testosterone d. estrogen; testosterone e. testosterone; inhibin