Sympathetic nervous system activation stimulates:
A) ejaculation in males.
B) secretion of tears.
C) salivation.
D) constriction of the bronchial tubes.

Question

Quizplus · Accepted Answer

Ejaculation in males is mediated by the sympathetic nervous system, which triggers the release of semen from the epididymis into the urethra and the subsequent contraction of smooth muscles to expel it out of the body.

Answer: B
 The sympathetic nervous system stimulates the secretion of tears through the activation of the lacrimal gland, which produces and releases the watery component of tears to keep the eyes moist and remove debris or irritants.

Answer: C
 The sympathetic nervous system increases salivation by activating the submandibular and sublingual glands, which secrete a watery and enzyme-rich fluid that moistens and starts breaking down food in the mouth.

Answer: D
 The sympathetic nervous system causes the relaxation, not constriction, of the bronchial tubes by inhibiting the activity of the parasympathetic nervous system, which normally constricts them. This allows more air to flow into the lungs and enhances breathing in stressful situations.

Sympathetic Nervous System Activation Stimulates