The muscle that helps to control testicular temperature by changing wrinkling of the scrotum is the:
a. detrusor
b. dartos
c. cremaster
d. extrusor
Answer: b. dartos
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Mouth lacerations or cuts would most likely cause:
A) hematemesis B) proteinuria C) polydipsia D) dysphagia
To prevent depletion of a substrate, the product of a metabolic pathway will
A. increase enzyme activity through positive feedback. B. catalyze its own production. C. turn off an enzyme early in the pathway. D. occupy the active site of an enzyme early in the pathway.
Which of the following is NOT an effect of testosterone?
A) maintenance of pregnancy B) deepening of the voice C) growth of facial hair D) sperm production E) development of heavy bones and muscles
If the thoracic duct were tied off, which of the following classes of nutrients would not enter the circulatory system at their normal rate?
A. amino acids B. glucose C. lipids D. disaccharides E. monosaccharides