Which option is not a typical glandular response to cholinergic stimulation?

Which option is not a typical glandular response to cholinergic stimulation?

• A. Lacrimation and Sweating
• B. Increased Salivation
• C. Decreased Tear Production
• D. No glandular effect

Answer: (D)

Cholinergic stimulation activates glandular secretion by acetylcholine acting on muscarinic receptors on exocrine glands, so it typically boosts secretions such as tears and saliva, and even sweating through sympathetic-cholinergic pathways. Tear production increases with this stimulation, so a decrease in tear production is not what you'd expect. The only option that would not fit the usual pattern is no glandular effect at all; given that cholinergic signals reliably promote glandular secretion, reporting no glandular response would not be typical.

Cholinergic stimulation activates glandular secretion by acetylcholine acting on muscarinic receptors on exocrine glands, so it typically boosts secretions such as tears and saliva, and even sweating through sympathetic-cholinergic pathways. Tear production increases with this stimulation, so a decrease in tear production is not what you'd expect. The only option that would not fit the usual pattern is no glandular effect at all; given that cholinergic signals reliably promote glandular secretion, reporting no glandular response would not be typical.