Muscle supplied by facial and mandibular nerves is

Digastric muscle has two bellies and lies below the mandible, extending from the mastoid process to the chin. The posterior belly, which is longer than the anterior, is attached in the mastoid notch of the temporal bone and passes downwards and forwards. The anterior belly is attached to the digastric fossa on the base of the mandible near the midline and it slopes downwards and backwards. The two bellies meet in an intermediate tendon, which runs in a fibrous sling attached to the greater cornu of the hyoid bone and is sometimes lined by a synovial sheath. The tendon perforates the stylohyoid.