Hyoglossus

From Wikipedia, the free encyclopedia

Hyoglossus

Extrinsic muscles of the tongue. Left side. (Hyoglossus visible at center.)

Muscles of the neck. Anterior view. Hyoglossal muscle in purple
Latin	musculus hyoglossus
Gray's	subject #242 1129
Origin	hyoid
Insertion	side of the tongue
Artery:
Nerve:	hypoglossal nerve (CN XII)
Action:	depresses and retracts tongue
Dorlands /Elsevier	m_22/12549261

The Hyoglossus, thin and quadrilateral, arises from the side of the body and from the whole length of the greater cornu of the hyoid bone, and passes almost vertically upward to enter the side of the tongue, between the Styloglossus and Longitudinalis inferior.

The hyoglossus depresses and retracts the tongue.

The fibers arising from the body of the hyoid bone overlap those from the greater cornu.

It is important in singing.

[edit] Additional images

Hyoid bone. Anterior surface. Enlarged.	Muscles of the neck. Lateral view.	The internal carotid and vertebral arteries. Right side.	Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.
Course and distribution of the glossopharyngeal, vagus, and accessory nerves.	Hypoglossal nerve, cervical plexus, and their branches.	Coronal section of tongue, showing intrinsic muscles.

[edit] External links

LUC hyog
-187695025 at GPnotebook
SUNY Figs 34:02-09
Roche Lexicon - illustrated navigator, at Elsevier 25420.000-1
Diagram

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e

List of muscles of head and neck: the head

Extraocular (CN III, IV, VI)

oblique (inferior, superior) - rectus (superior, inferior, medial, lateral) - levator palpebrae superioris (superior tarsal)

Mastication (CN V3)

masseter - temporalis - pterygoid (lateral, medial)

Facial (CN VII)

Mouth/throat (CN IX, X, XI)
(except TVP=V3)

Soft palate	veli palatini (tensor, levator) - musculus uvulae - palatopharyngeus (to pharnyx) - palatoglossus (to tongue)

Pharynx	pharyngeal constrictor (superior, middle, inferior) - longitudinal (stylopharyngeus, salpingopharyngeus)

Larynx	cricothyroid - cricoarytenoid (posterior, lateral) - arytenoid (oblique arytenoid/aryepiglottic, transverse arytenoid) - thyroarytenoid (vocal, thyroepiglottic)