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Parasympathetic Nerves and Acetylcholine Quiz

4 Questions

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Parasympathetic Nerves and Acetylcholine Quiz

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Questions and Answers

What type of receptor is present at organs innervated by parasympathetic nerves?

Adrenergic receptor

Dopaminergic receptor

Muscarinic receptor (correct)

Nicotinic acetylcholine receptor

Which type of receptor does acetylcholine act on at the neuroeffector junction?

Dopaminergic receptor

Serotonergic receptor

Adrenergic receptor

Nicotinic acetylcholine receptor (correct)

What is the neurotransmitter released by all postganglionic parasympathetic nerves?

Norepinephrine

Acetylcholine (correct)

Dopamine

Serotonin

What is the effect of acetylcholine acting on nicotinic acetylcholine receptors at the neuroeffector junction?

<p>Allows sodium through, causing post-ganglionic cell membrane depolarization</p> Signup and view all the answers

Study Notes

Parasympathetic Nerves and Receptors

Muscarinic receptors are present at organs innervated by parasympathetic nerves.
Acetylcholine acts on muscarinic receptors at the neuroeffector junction.
Acetylcholine is the neurotransmitter released by all postganglionic parasympathetic nerves.
Acetylcholine acting on nicotinic acetylcholine receptors at the neuroeffector junction has an excitatory effect.

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Description

Test your knowledge of parasympathetic nerves and neurotransmitters with this quiz. Explore the role of acetylcholine in both preganglionic and postganglionic parasympathetic nerves, and its interaction with nicotinic acetylcholine receptors.