Digastric Muscle

Beginning:

• venter posterior – incisura mastoidea ossis temporalis,

Attachment:

• venter anterior – fossa digastrica mandibulae.

Progress: The venter anterior and posterior merge into each other via a tendon that is attached to the corpus ossis hyoidei by a fibrous loop. This tendon pierces the attachment of the stylohyoideus muscle.

Innervation: r. digastricus (n. facialis) for venter posterior, n. mylohyoideus (n.  mandibularis) for venter anterior.

Function: depression of the mandible with a fixed lingual, elevation of the lingual with a fixed mandible.

Origin: venter anterior – first branchial arch (its processus mandibularis), venter posterior – second (hyoid) branchial arch.

Links

Used literature

• ČIHÁK, Radomír. Anatomie 1. 2. edition. Grada, 2001. 497 pp. ISBN 80-7169-970-5.

• Anatomický ústav 3.LF. Muscle tables [online]. [cit. 2012-02-27]. <http://katalog.lf3.cuni.cz/svaly/kategorie/355/sval/1207>.