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Masseter
Region: Head & Neck Muscles · All head & neck muscles
Masseter at a glance
| Origin | Zygomatic arch |
|---|---|
| Insertion | Lateral surface of the ramus and angle of the mandible |
| Actions | Elevates the jaw (closes the mouth); Helps protrude the jaw |
| Nerve supply | Trigeminal nerve (CN V3), masseteric branch |
◆ Good to know
One of the strongest muscles by force; chronic clenching or teeth grinding (bruxism) can hypertrophy it and square the jawline.
More Head & Neck Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.