The color of urine is due to the presence of a pigment called __________________, produced during the breakdown of hemoglobin.
Fill in the blank(s) with the appropriate word(s).Fill in the blank(s) with the appropriate word(s).
urochrome
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Which one of the following phonetic symbols indicates a closed glottis that is suddenly released after a build-up of subglottal air pressure?
a) [ x] b) [ ?] c) [?] d) [?]
Which of the following drugs would be an effective means for lowering plasma cholesterol levels?
A) a drug that stimulates intestinal cholesterol transport B) a drug that stimulates the enzyme HMG coA reductase C) a drug that adds plant sterols and stanols to the diet D) a drug that binds to bile acids and prevents them from being reabsorbed or a drug that adds plant sterols and stanols to the diet E) a drug that binds to bile acids and prevents them from being reabsorbed
Branches that may occur along an axon are called:
A) telodendria. B) collaterals. C) hillocks. D) dendrites.
In what segment of the nephron is the greatest fraction of filtered water reabsorbed?
A. the proximal tubule B. the ascending limb of the loop of Henle C. the distal convoluted tubule D. the collecting ducts E. the descending limb of the loop of Henle