The zona glomerulosa of the adrenal cortex secretes
a. aldosterone.
b. cortisol.
c. androgens and estrogens.
d. both (b) and (c) above.
e. all of these answers.
A
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Answer the following statement true (T) or false (F)
Chondroitin sulfate is abundant in the matrix of
A) epithelial tissue. B) cartilage. C) areolar tissue. D) elastic connective tissue. E) adipose tissue.
The correct order in which blood passes through these structures from leaving the heart until its return is
The following is a list of the vessels that blood passes through from the heart back to the heart. 1. Venules 2. Arterioles 3. Capillaries 4. Elastic arteries 5. Medium veins 6. Large veins 7. Muscular arteries a. 7,4,2,3,1,5,6 b. 6,5,1,3,2,7,4 c. 5,6,1,3,2,7,4 d. 2,7,4,3,1,5,6 e. 4,7,2,3,1,5,6
Gas exchange at the respiratory membrane is efficient because
A. the difference in partial pressures is substantial. B. the distances involved in exchange are small. C. the total surface area of the membrane is large. D. blood flow and air flow are coordinated (blood flow is highest around alveoli with highest Po2). E. All of these are correct.