What is the purpose of the villi in the small intestine?
A) to move digested food along the small intestine
B) to make digestive enzymes
C) to absorb digested food nutrients
D) all of the above
C
Explanation: A) This is the purpose of peristalsis, not the villi.
B) Digestive enzymes are made in the stomach, not the small intestine.
C) Correct!
D) The villi do only one of these, not all of them.
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Adrenergics may be used to ________.
a. restore cardiac rhythm, treat hypotension, and dilate bronchioles in respiratory distress b. treat hypertension, cardiac arrhythmia, and angina pectoris c. treat nonobstructive urinary retention, abdominal distention, and open-angle glaucoma d. reverse the effects of insecticide poisoning, cholinergic crisis, or mushroom poisoning
The group is tentatively planning to have a noon lunch on the lakeshore beach. To protect her skin at lunchtime, Jen's best strategy would be to
A. change the plan so that the group has lunch at a shaded picnic table and dinner on the beach. B. eat under a beach umbrella to protect herself from the sun's rays. C. not worry, since the high altitude of the lake means the sun's rays are less intense. D. go swimming for most of the lunch break because the water will protect her from UV rays.
All of the following are functions of the muscular system except:
A) produce heat. B) movement. C) maintain posture. D) hemopoiesis.
Health education programs that are conducted at the community level are termed to be micro-level interventions
Indicate whether the statement is true or false.