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← Older revision		Revision as of 04:59, 18 February 2025
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	[[Category:Nervous system]]		[[Category:Nervous system]]
	[[Category:Cranial nerves]]		[[Category:Cranial nerves]]
			<gallery>
			File:Lawrence_1960_1.3.png\|Terminal nerve illustration from Lawrence 1960
			File:Fritsch_dogfish_shark_brain.png\|Dogfish shark brain showing terminal nerve
			File:Johnston_Cranial_nerve_0.png\|Cranial nerve 0 diagram by Johnston
			File:Sobo_1909_629.png\|Terminal nerve depiction from Sobo 1909
			</gallery>

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'''Terminal nerve'''

The '''terminal nerve''', also known as '''nervus terminalis''' or '''cranial nerve zero''', is a cranial nerve that is often overlooked in the anatomy of the human nervous system. Its existence was discovered in humans in 1914 by German anatomist [[Gustav Fritsch]], but its function remains largely unknown.

==Etymology==

The term "terminal nerve" is derived from the Latin word "terminalis", which means "pertaining to a boundary or end". This is likely due to the nerve's position at the end of the cranial nerve sequence.

==Anatomy==

The terminal nerve is often described as a small and delicate nerve, which is difficult to locate due to its size and position. It is typically found near the [[olfactory nerve]], which is responsible for the sense of smell. The nerve fibers of the terminal nerve are unmyelinated, meaning they lack a myelin sheath, which is a layer that protects most other nerves and aids in the transmission of nerve impulses.

==Function==

The function of the terminal nerve is not well understood. Some studies suggest that it may play a role in the regulation of [[pheromones]], which are chemicals that can influence the behavior of others of the same species. However, more research is needed to confirm this theory.

==Related terms==

* [[Cranial nerves]]: The group of twelve paired nerves that come directly from the brain, of which the terminal nerve is often considered a part.
* [[Olfactory nerve]]: The first cranial nerve, which is responsible for the sense of smell and is often found near the terminal nerve.
* [[Pheromones]]: Chemicals that can influence the behavior of others of the same species, which the terminal nerve may help regulate.

==See also==

* [[Nervous system]]
* [[Cranial nerves]]
* [[Olfactory nerve]]

==References==

<references />

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[[Category:Anatomy]]
[[Category:Nervous system]]
[[Category:Cranial nerves]]

Terminal nerve - Revision history

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