A patient complains of blurred vision and fatigue. A diagnostic exam reveals that she has been taking megadoses of ________ supplements.
A) vitamin K
B) vitamin E
C) vitamin C
D) vitamin A
E) vitamin D
B) vitamin E
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An action potential involves a temporary reversal of polarity across the plasma membrane (that is, the inside of the axon becomes relatively positive compared to the interstitial fluid)
Indicate whether this statement is true or false.
Fast muscle fibers can develop a larger number of mitochondria in response to
A) repeated, exhaustive stimulation B) sustained low levels of muscle a activity C) high amounts of oxygen D) increased levels of testosterone E) prolonged periods of inactivity
Which portion of the penis contains the urethra?
A. Corpora cavernosa B. Corpus spongiosum C. Prepuce D. Crura
The pituitary portal circulation refers to the blood vessels linking the anterior pituitary with the target glands of anterior pituitary hormones
Indicate whether the statement is true or false.