What happens to blood flow as it approaches the heart?
a. speeds up
b. slows down
c. pools
d. becomes thicker
e. becomes thinner
a
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Drug X is a new drug to treat Alzheimer's Disease. This drug is able to cross the blood-brain barrier and circulate in the CSF. The drug is slightly acidic and at the recommended dose it decreases the CSF pH from 7.4 to 7.3. Will Drug X have any effect on respiration?
A. It will cause a decrease in respiratory rate. B. It will have no effect on respiratory rate, but will cause the patient to take shallower breaths. C. It will cause an increase in respiratory rate. D. It will have no effect on respiratory rate, but will cause an increase in depth of breathing. E. It will not impact respiratory function.
What is the average number of bones in the adult skeleton?
A. 156 B. 206 C. 283 D. 451
Which of these lists contains only trace elements?
A) sulfur, chlorine, oxygen B) selenium, hydrogen, calcium C) boron, oxygen, carbon D) silicon, fluorine, tin E) cobalt, calcium, sodium
The highly vascular layer of the skin, which provides thermoregulation via changing blood flow, is the
A) epidermis. B) subcutaneous layer. C) stratum basale. D) stratum corneum. E) dermis.