The skin layer that functions as a physical barrier to light and heat waves is the stratum ____
a. germinativum
b. spinosum
c. corneum
d. lucidum
c
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The approximate length of the larynx is ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT an endocrine gland aging effect?
a) Rise in the blood levels of PTH b) Less cortisol and aldosterone production c) Decreased levels of gonadotropins d) Decreased levels of calcitriol and calcitonin e) Increase in thymus size
Air flow through the smaller bronchioles can be adjusted by varying the contractile activity of the smooth muscle within their walls
Indicate whether the statement is true or false
How do the kidneys compensate respiratory acidosis?
A. By secreting more hydrogen ions B. By reabsorbing more ammonia C. By secreting more sodium ions D. By secreting more bicarbonate ions E. By reabsorbing more hydrogen ions