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.

Question

Quizplus · Accepted Answer

Sildenafil (Viagra) relaxes vascular smooth muscle, which increases blood flow to the corpus cavernosum, leading to improved erectile function. It does not enhance neuronal stimulation of the amygdala in the brain or stimulate parasympathetic or sympathetic receptors in the nerve fibers leading to the sexual organs.

Sildenafil (Viagra) Achieves Its Therapeutic Action in the Treatment of Erectile