Sildenafil (Viagra) achieves its therapeutic action in the treatment of erectile dysfunction by:
A) enhancing neuronal stimulation of the amygdala in the brain.
B) stimulating parasympathetic receptors in the nerve fibers leading to the sexual organs.
C) stimulating sympathetic receptors in the nerve fibers leading to the sexual organs.
D) relaxing vascular smooth muscle, which increases blood flow to the corpus cavernosum.
D
Health Professions
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What will be an ideal response?
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Why would stroke volume increase during exercise? Parasympathetic discharge increases cardiac contractilityVasodilation of working muscles increases venous return to the heartVasoconstriction of peripheral venous blood reservoirs increases venous return
A. I and III only B. I only C. II and III only D. I , II, and III
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