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- Subject
- Pharmacologymedical-mcqs › pharmacology
- Published
- 29 Jul 2019
- Last updated
- 28 May 2026
Explanation
Option A is correct because acetylcholine is the neurotransmitter released at both the preganglionic and postganglionic synapses in the parasympathetic nervous system. The other options are incorrect: the parasympathetic system does not cause dilation of skeletal muscle blood vessels, the postganglionic fibers are typically shorter than preganglionic fibers, and noradrenaline is not the neurotransmitter used at the postganglionic junction.
More Pharmacology MCQs
Practice related questions from the same subject.
- 1.For which condition is aminocaproic acid primarily prescribed?
- 2.Identify the category of drugs that primarily undergo microsomal oxidation during metabolism:
- 3.Which characteristic best describes the sublingual route of drug administration?
- 4.Which statement accurately describes the action of potassium channel openers?
- 5.Which medication lowers blood pressure by targeting the vasomotor centers within the central nervous system?
- 6.Why is Indomethacin generally favored over Colchicine for treating an acute gout flare?
- 7.Which medication, when used long-term for seizure management, is known to cause facial coarsening, excessive hair growth, gum enlargement, and bone softening?
- 8.Which of the following drugs is frequently associated with cardiac toxicity as a side effect?