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Neuro Atlas

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NEUROANATOMY<br />

Hypoglossal Nerve (XII): Schema<br />

Hypoglossal nerve (XII)<br />

(in hypoglossal canal)<br />

Meningeal branch<br />

Intrinsic<br />

muscles<br />

of tongue<br />

Superior<br />

longitudinal<br />

Transverse<br />

and vertical<br />

Inferior<br />

longitudinal<br />

Styloglossus<br />

muscle<br />

Hypoglossal nucleus<br />

Occipital condyle<br />

Inferior ganglion of<br />

vagus nerve<br />

Ventral rami of<br />

C1, 2, 3 form<br />

ansa cervicalis<br />

of cervical plexus<br />

Superior cervical<br />

sympathetic<br />

ganglion<br />

Genioglossus<br />

muscle<br />

Geniohyoid muscle<br />

Hyoglossus muscle<br />

Superior root of<br />

ansa cervicalis<br />

Internal carotid artery<br />

Inferior root of ansa cervicalis<br />

Thyrohyoid muscle<br />

Omohyoid muscle<br />

(superior belly)<br />

Sternohyoid muscle<br />

Ansa cervicalis<br />

Internal jugular vein<br />

Common carotid artery<br />

Sternothyroid muscle<br />

Omohyoid muscle (inferior belly)<br />

Efferent fibers<br />

Afferent fibers<br />

34

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