Which of the following is FALSE regarding erection of the penis?
A. It is a spinal reflex.
B. It is a result of sympathetic stimulation of vascular smooth muscle in the erectile tissue of the penis.
C. It can be triggered by stimulation of tactile receptors in the penis.
D. It is a result of arteriolar vasodilation and venous constriction of blood vessels in the penis.
E. It can be inhibited by input to the autonomic nerves from higher brain centers.
B
You might also like to view...
Which of the following changes in the digestive system occurs with advancing age?
A) increase in smooth muscle tone B) decreased cancer rates C) decline in epithelial stem cell division D) thickening of the stratified epithelium E) increased osmoreceptor sensitivity
Basophils release ________, a vasodilator that increases blood flow to damaged tissues.
Fill in the blank(s) with the appropriate word(s).
Joe suffered a hairline fracture at the base of the dens. Identify the bone and fracture site
A) atlas; cervical B) atlas; lumbar C) axis; lumbar D) axis; thoracic E) axis; cervical
The periosteum, a connective tissue covering on the diaphysis, is represented by ________