Question

which of the following are the effects of the parasympathetic nervous system on target cells? select all that apply.
answers: a - e
a stimulation of the adrenal medulla to secrete adrenal hormones
b dilation of the bronchioles in the lungs
c increasing motility and secretions of the digestive system
d decreasing the heart rate
e constriction of the pupils

Explanation:

• Option C: The parasympathetic nervous system promotes digestion by increasing motility and secretions in the digestive system.
• Option D: It slows down the heart rate (bradycardia) as part of its "rest - and - digest" function.
• Option E: The parasympathetic nervous system causes pupil constriction (miosis).
• Option A: Stimulation of the adrenal medulla to secrete adrenal hormones is a function of the sympathetic nervous system.
• Option B: Dilation of bronchioles in the lungs is a sympathetic nervous system effect (to facilitate increased air intake during "fight - or - flight" responses).

Answer:

C. Increasing motility and secretions of the digestive system, D. Decreasing the heart rate, E. Constriction of the pupils