Vitamin ________ is crucial for the absorption of calcium from the gastrointestinal tract. Therefore, a deficiency in this vitamin may result in rickets and other bone abnormalities.
Fill in the blank(s) with the appropriate word(s).
Answer: D
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In response to the arrival of acidic chyme in the duodenum, the
A) blood levels of secretin rise. B) blood levels of cholecystokinin fall. C) blood levels of gastrin rise. D) blood levels of enterocrinin fall. E) liver releases enzymes for chemical digestion.
You have a patient with extensive birth defects that affect the kidney anatomy. Nevertheless, she does have some kidney function. One thing you've noticed in her labs is extremely low renin secretion. Which of the following anatomical locations is likely to exhibit abnormal development?
A. The efferent arteriole B. The ascending limb of the loop of Henle C. The glomerular capillaries D. The proximal tubule E. The juxtaglomerular apparatus
The zygomatic arch is composed of processes of
A) the zygomatic and maxillary bones. B) the maxillary and temporal bones. C) the temporal and parietal bones. D) the zygomatic and temporal bones.
A muscle that is not consciously controlled and has a banded appearance would be described as
A. nonstriated voluntary. B. smooth voluntary. C. striated voluntary. D. striated involuntary. E. nonstriated involuntary.