Digastric muscle
Origin of Digastric
Anterior belly - digastric fossa (mandible); posterior belly - mastoid process of temporal bone.
Insertion of Digastric
Intermediate tendon (hyoid bone)
Muscle Action/Function of Digastric
Opens the jaw when the masseter and the temporalis are relaxed.
Arterial (Blood) Supply of Digastric
Anterior belly - Submental branch of facial artery; posterior belly - occipital artery.
Digastric Video
Digastric muscle