The skin consists of a superficial ________ and a underlying ________.
A. dermis; epidermis
B. epidermis; dermis
C. epidermis; hypodermis
D. dermis; hypodermis
Answer: B
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When a person is exposed to painfully cold temperatures, why do the fingertips, toes, nose, and ear pinnae often respond to the pain before other body regions?
A) Their greater surface area to volume ratio causes them to lose heat faster. B) Their thermoreceptors have a lower threshold of sensitivity to cold. C) These are the only regions of the body with receptors for cold. D) All of the answers are correct. E) None of the answers are correct.
Which of the following is not true of testosterone?
A. It is a major male sex hormone. B. It is produced by the sustentacular cells in the seminiferous tubules. C. It has a significant effect on sex drive. D. It is responsible for the development of secondary sexual characteristics. E. All of these are true of testosterone.
Depletion of extracellular K+ may induce ________.
A. hyperventilation B. metabolic acidosis C. metabolic alkalosis D. None of the choices are correct.
Continuous stress on the bone causes it to:
a. grow longer b. become thicker c. degenerate or thin d. become stronger