Examlex
Which of the following nutrients provides energy for humans?
Nicotinic Receptors
A type of acetylcholine receptor found in the nervous system that, when activated, allows for the passage of ions across cell membranes, involved in muscle contraction and other processes.
Acetylcholine
A neurotransmitter involved in both the peripheral and central nervous systems, playing a critical role in muscle contraction and potentially in memory formation.
Excitatory
Relating to or causing an increase in activity or efficiency in a nerve or muscle, often involving the release of neurotransmitters.
Parasympathetic Preganglionic Axons
Nerve fibers originating in the central nervous system that extend to a ganglion in the parasympathetic part of the autonomic nervous system.
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