Nokea
A drug that affects both divisions of the autonomic system is going to bind to, or block, which type of neurotransmitter receptor?
Correct Answer: A
Rationale: Rationale for Correct Answer (A):
1. Nicotinic receptors are present in both sympathetic and parasympathetic divisions of the autonomic system.
2. Drugs affecting both divisions target nicotinic receptors to modulate autonomic functions.
3. Binding or blocking nicotinic receptors can impact both sympathetic and parasympathetic activities.
Summary of Incorrect Choices:
B. Muscarinic receptors are specific to the parasympathetic division, not affecting the sympathetic division.
C. α-adrenergic receptors are specific to the sympathetic division, not influencing parasympathetic functions.
D. β-adrenergic receptors are also specific to the sympathetic division, not impacting the parasympathetic division.