Masseter - Podcast Version TeachMeAnatomy 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The masseter is a muscle of mastication (chewing). It is quadrangular in shape and has two parts – deep and superficial. Attachments: The superficial part originates from maxillary process of the zygomatic bone. The deep part originates from the zygomatic arch of the temporal bone. Both parts attach to the ramus of the mandible. Actions: Elevation of the mandible (closes the mouth). Innervation: Mandibular nerve (V3). Blood Supply: Masseteric artery (branch of maxillary artery). By TeachMeSeries Ltd (2025) Fig 1The masseter muscle. Only the superficial head is visible Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Pro Feature - Dissection Atlas Prosection of the parotid gland and surrounding structures. Note the close anatomical relationship between the parotid gland and the facial nerve. Prosection of the parotid gland and surrounding structures. Note the close anatomical relationship between the parotid gland and the facial nerve. You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Rate This Article