In which of the following are useful nutrients (amino acids, sugars, vitamins) actively retained for use in the body?
a) tubular reabsorption
b) the countercurrent mechanism
c) tubular secretion
d) glomerular filtration
Ans: a) tubular reabsorption
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The process of carbohydrate digestion begins in the ________.
A. mouth B. stomach C. small intestine D. large intestine
Which of the following muscles helps to open the mouth (depress the mandible)?
A. Depressor anguli oris B. Sternohyoid C. Digastric D. Zygomaticus major E. Mentalis
When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is one of the events that occurs after an increase in blood pressure?
A. Baroreceptors are stimulated. B. Action potential frequency to the cardioregulatory center of brain decreases. C. Sympathetic stimulation of the heart increases. D. Heart rate increases. E. An increase in number of action potentials in the cardiac nerve.
A condition described by excessive body and facial hair in women is
A. scabies. B. alopecia. C. hirsutism. D. decubitus ulcer.