3 Questions
Which neurotransmitter is used at both sympathetic and parasympathetic preganglionic nerve endings?
Acetylcholine
Which division of the autonomic nervous system uses ACh as a neurotransmitter in its postganglionic nerve fibers?
Parasympathetic division
In which division of the autonomic nervous system does ACh serve as a neurotransmitter in some postganglionic fibers?
Sympathetic division
Study Notes
Autonomic Nervous System Neurotransmitters
- Acetylcholine (ACh) is used as a neurotransmitter at both sympathetic and parasympathetic preganglionic nerve endings.
- The parasympathetic division of the autonomic nervous system uses ACh as a neurotransmitter in its postganglionic nerve fibers.
- In the sympathetic division of the autonomic nervous system, ACh serves as a neurotransmitter in some postganglionic fibers.
Test your knowledge of the autonomic nervous system's divisions and neurotransmitters with this quiz. Explore the roles of ACh in the sympathetic and parasympathetic divisions, as well as its functions in different postganglionic fibers.
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