The most influential medical textbook of the ancient era was written by ________.
A. Avicenna
B. Galen
C. Vesalius
D. Aristotle
E. Hippocrates
Answer: B
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Type II cells that line the alveoli are responsible for the production of ________.
A. carina B. surfactant C. carbon dioxide D. nitrogen
Hormones released into the interstitial fluid by the anterior pituitary enter the circulation easily because
A) they are brought through the choroid plexus by active transport. B) they pass easily through the infundibulum. C) a strong countercurrent mechanism maintains a concentration gradient that draws them in. D) the adjacent capillaries are fenestrated to permit passage of large molecules into the circulation. E) None of the answers are correct.
Substance Y is not present in the urine; however, it was originally filtered through the glomerulus. How is this possible?
A) It was phagocytized during the countercurrent exchange. B) It was secreted in the distal tubule. C) It was resorbed in the proximal tubule. D) It was not filtered by the glomerulus.
The temporal bones are joined with the parietal bones at the ________ sutures
A) coronal B) sagittal C) squamous D) lambdoid