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The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve.
May 20, 2024 · The hypoglossal nerve (CN XII) is exclusively a motor nerve carrying general somatic efferent fibers (GSE). It innervates all intrinsic and almost all extrinsic muscles of the tongue, as well as one suprahyoid muscle, the geniohyoid muscle.
Dec 11, 2022 · The hypoglossal nerve arises from the hypoglossal nucleus in the medulla oblongata of the brainstem. It then passes laterally across the posterior cranial fossa, within the subarachnoid space. The nerve exits the cranium via the hypoglossal canal of the occipital bone.
Jun 4, 2021 · Overview. What is the hypoglossal nerve? The hypoglossal nerve is one of 12 cranial nerves. It’s also known as the 12th cranial nerve, cranial nerve 12 or CNXII. This nerve starts at the base of your brain. It travels down your neck and branches out, ending at the base and underside of your tongue. Advertisement.
Mar 1, 2024 · The hypoglossal nerve supplies all of the motor function to your tongue. It's the 12th cranial nerve. Damage to this nerve can affect speech, chewing, and swallowing. The prefix hypo is of Greek origin and means "under." Glossal, also from the Greek, mean "tongue." Anatomy.
Nov 7, 2022 · The Hypoglossal Nerve is the 12th Cranial Nerve (Cranial Nerve XII). It is mainly an efferent nerve for the tongue musculature. The nerve originates from the medulla and travels caudally and dorsally to the tongue.
The Hypoglossal nerve is the 12th cranial nerve s that originate from the medulla obligate of the brain stem. It innervates all the extrinsic and intrinsic muscles of the tongue, except for the palatoglossus which is innervated by the vagus nerve. It is a nerve with a solely motor function.
Oct 3, 2022 · The hypoglossal nerve is one of the 12 cranial nerves arising from the brain. It's a paired nerve, and you have two — left and right. Together, the two hypoglossal nerves control the muscles of...
Jan 19, 2018 · The hypoglossal nerve is the twelfth cranial nerve and controls movements of the tongue. The path of the nerve starts in the hypoglossal nucleus of the brainstem, which is located near the...
The hypoglossal nerve extends from the hypoglossal nucleus to the medulla and exits the brain through the hypoglossal canal.
