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Essay / Research Paper Abstract
This 4 page paper discusses the role acetylcholine plays in our body’s physiology emphasizing the consequences that too much or too little of the neurotransmitter can have. Bibliography lists 5 sources.
Page Count:
4 pages (~225 words per page)
File: AM2_PPacetylcholine.rtf
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Unformatted sample text from the term paper:
Acetylcholine is produced by cholinergic neurons and is essential in peripheral nervous system function (Powers, 2009). Both skeletal muscle and smooth muscle is dependent on acetylcholine (Powers, 2009).
In addition, acetylcholine is believed to play an important role in cognitive functions such as learning and memory (Alzheimers, Memory, and Acetylcholine, 2009). Even our mood is
affected by this important neurotransmitter (Powers, 2009). Acetylcholine is derived from a combination of choline and acetyl coenzyme A
via the action of the enzyme choline acetyl transferase (Powers, 2009). After being synthesized the neurotransmitter is neatly packaged into vesicles which, upon receiving a signal from the axon,
fuses with the cell membrane which wraps it (Powers, 2009). Each neuron in this process is composed of both the
cell body (the soma or perikaryon) and its extensions which are referred to variously as processes or fibers. The processes and fibers of a neuron make up an axon
and several dendrites. The dendrites are responsible for the conveyance of electrical changes, known as nerve impulses, to the cell body. Interestingly, this electrical change is constantly regenerated
by the nervous system as it travels throughout the system and does not degrade as would a simple electrical current. The receptors of the dendrites are located
on the distal ends and are responsible for the receipt of stimuli which initiate conduction of impulses to the cell body. Usually the axon is longer than the dendrites
and branches only at the end of the fiber. These side branches are referred to as axon collaterals, the ends of which terminate in many branched filaments known as
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