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Suprahyoid Muscles
Origins, insertions and action of the suprahyoid muscles
13
Anatomy
Graduate
10/30/2011

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Term
Digastric (ant belly): origin
Definition
digastric fossa of mandible
Term
Digastric: insertion
Definition
intermediate tendon
through fibrous loop (attachment: greater horn & body of hyoid)
Term
Digastric: action
Definition
elevates hyoid bone & base of tongue,
fixes hyoid bone,
depresses mandible
Term
Digastric (post belly): origin
Definition
mastoid notch of temporal bone
Term
Stylohyoid: origin
Definition
styloid process of temporal bone
Term
Stylohyoid: insertion
Definition
hyoid bone at junction of body
Term
Stylohyoid: action
Definition
retracts hyoid & base of tongue
Term
Mylohyoid: origin
Definition
mylohoid line on medial surface of mandible
Term
Mylohyoid: insertion
Definition
median mylohyoid raphe
Term
Mylohyoid: action
Definition
elevates floor of mouth & hyoid,
depresses mandible
Term
Geniohyoid: origin
Definition
inf mental spine,
symphysis of mandible
Term
Geniohyoid: insertion
Definition
ant aspect of body of hyoid
Term
Geniohyoid: action
Definition
protrudes hyoid & tongue
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