舌筋

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舌,舌状の器官 / 言語

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/02/19 17:47:37」(JST)

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The muscles of tongue can be divided into intrinsic and extrinsic groups.

The intrinsic muscles lie entirely within the tongue, while the extrinsic muscles attach the tongue to other structures.

The extrinsic muscles reposition the tongue, while the intrinsic muscles alter the shape of the tongue for talking and swallowing.

Extrinsic muscles

Extrinsic tongue muscles, by definition, originate from structures outside the tongue and insert into the tongue. The four paired extrinsic muscles protrude, retract, depress, and elevate the tongue:

Muscle	From	Nerve	Function
Genioglossus muscle	mandible	hypoglossal nerve	protrudes the tongue as well as depressing its center.
Hyoglossus muscle	hyoid bone	hypoglossal nerve	depresses the tongue.
Styloglossus muscle	styloid process	hypoglossal nerve	elevates and retracts the tongue.
Palatoglossus muscle	palatine aponeurosis	pharyngeal branch of vagus nerve	depresses the soft palate, moves the palatoglossal fold towards the midline, and elevates the back of the tongue.

Intrinsic muscles

Four paired intrinsic muscles of the tongue originate and insert within the tongue, running along its length. These muscles alter the shape of the tongue by: lengthening and shortening it, curling and uncurling its apex and edges, and flattening and rounding its surface.^[1]

The superior longitudinal muscle runs along the superior surface of the tongue under the mucous membrane, and elevates, assists in retraction of, or deviates the tip of the tongue. It originates near the epiglottis, the hyoid bone, from the median fibrous septum.
The inferior longitudinal muscle lines the sides of the tongue, and is joined to the styloglossus muscle.
The verticalis muscle is located in the middle of the tongue, and joins the superior and inferior longitudinal muscles.
The transversus muscle divides the tongue at the middle, and is attached to the mucous membranes that run along the sides.

References

^ Drake, R. et al. Gray's Anatomy for Students, Elsevier, 2005. ISBN 0-443-06612-4

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1. 新生児の評価 assessment of the newborn infant

English Journal

[Experimental studies in the healing process of the rats tongue after Nd:YAG contact laser irradiation. Scanning electron microscopic observation].

Ishihara A1.
Aichi Gakuin Daigaku Shigakkai shi.Aichi Gakuin Daigaku Shigakkai Shi.1990 Sep;28(3):895-912.
The Nd:YAG laser is useful in clinical oral surgery because of its superior hemostatic and coagulating effects. The purpose of this study was to examine the healing process of the tongue wounds caused by the Nd:YAG contact laser. A scanning electron microscope (SEM) was used, focusing mainly on the
PMID 2135144

Japanese Journal

Nd: YAGレーザーの同一出力による舌背照射部位の血管構築像について

松本晃一,覚道健治,諏訪文彦,池宏海,村田雄一,白数力也,熊崎護
日本レーザー歯学会誌 9(1), 68-74, 1998
… The Nd: YAG laser was irradiated against differential position on the lingual dorsum of a rat under the 3Watt for 1.0 second.<BR>Wounds of tongue dorsum were observed macroscopically, microscopically and also examined by SEM.<BR>The following results were obtained;Microscopical findings: The penetration of left tongue dorsum anterior group was observed still the musculi longitudinalis superior. …
NAID 130003925221

「舌筋群」

Muscles of tongue
	Lateral view of the tongue, with extrinsic muscles highlighted.
	Coronal section of tongue, showing intrinsic muscles
Latin	musculi linguae
Origin
Insertion
Artery
Nerve
Actions

　　[★]

英: tongue muscles
ラ: musculi linguae
関: 内舌筋、外舌筋

「舌筋」

　　[★]

英: muscles of tongue (Z)
ラ: musculi linguae
関: 舌下神経

[1] Drake, R. et al. Gray's Anatomy for Students, Elsevier, 2005. ISBN 0-443-06612-4

Muscles of tongue

Lateral view of the tongue, with extrinsic muscles highlighted.

Coronal section of tongue, showing intrinsic muscles
Latin	musculi linguae
Origin
Insertion
Artery
Nerve
Actions

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案内

musculi linguae