Hypoglossal nerve
(Redirected from Hypoglossus nerve)
Hypoglossal nerve is the twelfth cranial nerve in the human body. It is responsible for the movement of most of the muscles in the tongue, and is thus an important factor in speech, swallowing, and other functions.
Anatomy[edit | edit source]
The hypoglossal nerve originates in the medulla oblongata, a part of the brainstem. It travels through the hypoglossal canal, a small passage in the occipital bone of the skull, before it reaches the tongue.
Function[edit | edit source]
The hypoglossal nerve controls the movement of the tongue. It is responsible for the contraction of the muscles that allow the tongue to move in various directions, such as protrusion, retraction, and side-to-side movement. This is crucial for several functions, including speech, swallowing, and cleaning the oral cavity.
Clinical significance[edit | edit source]
Damage to the hypoglossal nerve can result in hypoglossal nerve palsy, a condition characterized by a loss of control over the tongue muscles. This can lead to difficulties with speech and swallowing, and in severe cases, can cause the tongue to atrophy and deviate towards the side of the injury.
See also[edit | edit source]
References[edit | edit source]
Hypoglossal nerve Resources | |
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