A nurse explains that autonomic preganglionic neurons release the same neurotransmitter in both autonomic divisions. Which neurotransmitter is described?
Correct answer: C. Acetylcholine
- A. Dopamine
- B. Norepinephrine
- C. Acetylcholine
- D. Serotonin
Explanation
Both sympathetic and parasympathetic preganglionic neurons release acetylcholine onto nicotinic receptors in autonomic ganglia. Norepinephrine is released by most sympathetic postganglionic neurons, so confusing it with the preganglionic transmitter is the common trap.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Nervous System and Special Senses
The nervous system covers neurons, neuroglia, nerve impulses, synapses, reflex arcs, and the organization of the central and peripheral nervous systems. It also explains the autonomic divisions and the receptors and pathways for vision, hearing, balance, taste and smell, distinguishing sensory reception from conscious perception.
Practise Nervous System and Special Senses
40 free Nervous System and Special Senses MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Anatomy and Physiology for Nursing questions like this
Anatomy and Physiology for Nursing is on 4 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Nervous System and Special Senses questions
Which cranial nerve carries smell information from the olfactory receptors to the brain?
A patient cannot taste the anterior two-thirds of the tongue after facial nerve damage. Which nerve pathway is most closely involved?
Which structure contains the sensory receptors responsible for hearing?
Which neuroglial cell protects the central nervous system by engulfing damaged cells and microorganisms?
Which structure connects the two cerebral hemispheres and allows communication between them?
A patient suddenly sees a bright flash, and the pupils constrict in response. Which division of the autonomic nervous system produces this pupil constriction?