Mylohyoid

Region: Head & Neck Muscles · All head & neck muscles

Mylohyoid at a glance

OriginMylohyoid line of the mandible
InsertionHyoid bone and the midline raphe
ActionsForms and elevates the floor of the mouth; Raises the hyoid and tongue when swallowing
Nerve supplyTrigeminal nerve (CN V3), nerve to mylohyoid

◆ Good to know

It is the diaphragm of the mouth: infections from lower teeth can spread above it (into the sublingual space) or below it (into the submandibular space).

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.