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10 wrz 2024 · The hypoglossal nerve is examined by asking the patient to protrude their tongue. Other movements such as asking the patient to push their tongue against their cheek and feeling for the pressure on the opposite side of the cheek may also be used if damage is suspected.
7 lis 2022 · The hypoglossal nerve is the 12th cranial nerve (CN 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 (see Image.
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.
The Hypoglossal nerve is the 12th cranial nerves 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.
Definition. This nerve controls all tongue movements. Nuclear or infranuclear lesions produce paralysis, atrophy, and fasciculations of the tongue on the involved side. Supranuclear lesions produce mild to moderate contralateral weakness that may be transient.
20 maj 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.
21 lis 2023 · Brainstem bulbar lesions are rare. Peripheral lesions cause wasting of the tongue on the affected side, with deviation of the tongue towards the side of weakness. Bilateral wasting occurs in motor neuron disease (MND) and bilateral peripheral lesions. Fasciculations are characteristic.
