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Tongue - Anatomy & Physiology (view source)
Revision as of 21:34, 27 December 2010
, 21:34, 27 December 2010→Muscles
==Muscles==
==Muscles==
===Intrinsic Muscles===
Intrinsic muscles include; the dorsal and ventral longitudinal muscles and the transverse and vertical bundles.
===Extrinsic Muscles===
The extrinsic muscles include;
'''Styloglossus'''
The origin is the [[Hyoid Apparatus - Anatomy & Physiology|hyoid apparatus]] (stylohyoid). It retracts and elevates the tongue.
[[Image:Tongue Venous Drainage.jpg|thumb|right|250px|Venous Drainage of the Tongue - Copyright Prof. Pat Mccarthy]]
'''Genioglossus'''
[[Image:Tongue Muscles Drawing.jpg|thumb|right|150px|Drawing of the Extrinsic Muscles of the Tongue - Copyright nabrown]]
The origin is the incisive part of the [[Skull and Facial Muscles - Anatomy & Physiology#Mandible (mandibula)|mandible]]. It protrudes and depressed the tongue.
'''Hyoglossus'''
The origin is the [[Hyoid Apparatus - Anatomy & Physiology|hyoid apparatus]] (basihyoid). It retracts and depresses the tongue.
'''Geniohyoideus'''
The origin is the incisive part of the [[Skull and Facial Muscles - Anatomy & Physiology#Mandible (mandibula)|mandible]] and the insertion site is the body of the [[Hyoid Apparatus - Anatomy & Physiology|hyoid]]. It lies below the tongue (not within it) and draws the [[Hyoid Apparatus - Anatomy & Physiology|hyoid]], and therefore the tongue forward.
[[Image:Tongue Muscles Drawing.jpg|thumb|right|250px|Drawing of the Extrinsic Muscles of the Tongue - Copyright nabrown]]
==Innervation==
==Innervation==