Digastric muscle

Digastric muscle
Muscles of the neck. Lateral view.
Front view of neck.
Details
Origin	Anterior belly - digastric fossa (mandible); posterior belly - mastoid notch of temporal bone
Insertion	Intermediate tendon (hyoid bone)
Artery	Anterior belly - Submental branch of facial artery; posterior belly - occipital artery
Nerve	Anterior belly - mandibular division (V3) of the trigeminal (CN V) via the mylohyoid nerve; posterior belly - facial nerve (CN VII)
Actions	Opens the jaw when the masseter and the temporalis are relaxed.
Identifiers
Latin	musculus digastricus
TA98	A04.2.03.002
TA2	2160
FMA	46291
Anatomical terms of muscle [edit on Wikidata]

The digastric muscle (also digastricus) (named digastric as it has two 'bellies') is a bilaterally paired suprahyoid muscle located under the jaw. Its posterior belly is attached to the mastoid notch of temporal bone, and its anterior belly is attached to the digastric fossa of mandible; the two bellies are united by an intermediate tendon which is held in a loop that attaches to the hyoid bone. The anterior belly is innervated via the mandibular nerve (cranial nerve V), and the posterior belly is innervated via the facial nerve (cranial nerve VII). It may act to depress the mandible or elevate the hyoid bone.

The term "digastric muscle" refers to this specific muscle even though there are other muscles in the body to feature two bellies.^{[citation needed]}