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	~~'''~~Stylohyoid ~~branch~~ of ~~facial nerve''' is a branch of the [[facial nerve]] that supplies the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]]. It is also known as~~ the ~~''nervus stylohyoideus''.~~		== Stylohyoid Branch of the Facial Nerve ==

	~~==Etymology==~~		[[File:Gray788.png\|thumb\|right\|Diagram of the facial nerve, showing the stylohyoid branch.]]
	~~The term ''stylohyoid'' is derived from~~ the ~~Greek words ''stylos''~~, ~~meaning pillar, and ''hyoeides'', meaning shaped like~~ the ~~letter upsilon~~. ~~This is in reference to the shape and location of the [[stylohyoid muscle~~]] ~~which this nerve branch supplies.~~

	~~==Anatomy==~~		The '''stylohyoid branch of the facial nerve''' is a small nerve that arises from the [[facial nerve]] (cranial nerve VII). It is responsible for innervating the [[stylohyoid muscle]], which plays a role in swallowing by elevating the [[hyoid bone]].
	The [[facial nerve]] (~~seventh~~ cranial nerve) ~~gives off several branches as it courses through the facial region~~. ~~One of these branches is the stylohyoid branch, which~~ is ~~given off just after the nerve exits the [[stylomastoid foramen]]. This branch courses towards~~ the [[stylohyoid muscle]] ~~and~~ the [[~~posterior belly of digastric muscle~~]]~~, supplying them with motor innervation~~.

	==~~Function~~==		== Anatomy ==
	The primary function of the stylohyoid branch of facial nerve is to provide motor innervation to the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]]. These muscles are involved in several functions including swallowing and speech.

	==~~Clinical significance~~==		The stylohyoid branch originates from the [[facial nerve]] as it exits the [[stylomastoid foramen]], a small opening located in the temporal bone of the skull. After emerging from the foramen, the facial nerve gives off several branches, including the stylohyoid branch.
	~~Damage to~~ the stylohyoid branch ~~of facial nerve can result in weakness or paralysis of~~ the [[stylohyoid muscle]] ~~and~~ the [[posterior belly of digastric muscle]]. This can ~~lead~~ to ~~difficulties~~ in swallowing ~~and speech~~.
			The stylohyoid branch travels alongside the [[posterior auricular nerve]] and the [[digastric branch of the facial nerve]], which innervates the [[posterior belly of the digastric muscle]].

			== Function ==

			The primary function of the stylohyoid branch is to provide motor innervation to the [[stylohyoid muscle]]. This muscle is a slender muscle located in the neck, running parallel to the [[posterior belly of the digastric muscle]].

			The stylohyoid muscle assists in the elevation of the [[hyoid bone]] and the base of the tongue during swallowing. This action is crucial for the proper passage of food from the mouth into the [[pharynx]].

			== Clinical Significance ==

			Damage to the stylohyoid branch of the facial nerve can result in difficulty swallowing, as the elevation of the hyoid bone is compromised. This can occur due to trauma, surgical complications, or neurological disorders affecting the facial nerve.

			In some cases, the stylohyoid branch may be involved in [[Bell's palsy]], a condition characterized by sudden weakness or paralysis of the muscles on one side of the face. Although Bell's palsy primarily affects the facial muscles, the involvement of the stylohyoid branch can contribute to swallowing difficulties.

			== Related Pages ==

	~~==See also==~~
	* [[Facial nerve]]		* [[Facial nerve]]
	* [[Stylohyoid muscle]]		* [[Stylohyoid muscle]]
	* [[~~Posterior belly of digastric muscle]]~~		* [[Hyoid bone]]
			* [[Swallowing]]
	~~[[Category:Anatomy~~]]		* [[Bell's palsy]]
	[[~~Category:Neurology~~]]
	[[~~Category:Medical terminology~~]]

	~~{{stub}}~~		[[Category:Facial nerve]]
			[[Category:Anatomy of the head and neck]]

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2024-02-20T00:22:42Z

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'''Stylohyoid branch of facial nerve''' is a branch of the [[facial nerve]] that supplies the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]]. It is also known as the ''nervus stylohyoideus''.

==Etymology==
The term ''stylohyoid'' is derived from the Greek words ''stylos'', meaning pillar, and ''hyoeides'', meaning shaped like the letter upsilon. This is in reference to the shape and location of the [[stylohyoid muscle]] which this nerve branch supplies.

==Anatomy==
The [[facial nerve]] (seventh cranial nerve) gives off several branches as it courses through the facial region. One of these branches is the stylohyoid branch, which is given off just after the nerve exits the [[stylomastoid foramen]]. This branch courses towards the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]], supplying them with motor innervation.

==Function==
The primary function of the stylohyoid branch of facial nerve is to provide motor innervation to the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]]. These muscles are involved in several functions including swallowing and speech.

==Clinical significance==
Damage to the stylohyoid branch of facial nerve can result in weakness or paralysis of the [[stylohyoid muscle]] and the [[posterior belly of digastric muscle]]. This can lead to difficulties in swallowing and speech.

==See also==
* [[Facial nerve]]
* [[Stylohyoid muscle]]
* [[Posterior belly of digastric muscle]]

[[Category:Anatomy]]
[[Category:Neurology]]
[[Category:Medical terminology]]

{{stub}}

Stylohyoid branch of facial nerve - Revision history

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