Mylohyoid : Origin, Insertion, Action & Nerve Supply

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The mylohyoid muscle is a paired muscle running from the mandible to the hyoid bone.The mylohyoid is a broad, triangular shaped muscle. It forms the floor of the oral cavity and supports the floor of the mouth.

Mylohyoid muscle

Origin: Originates from the mylohyoid line of the mandible

Insertion: Anterior three quarters: midline raphe. posterior quarter: superior border of the body of hyoid bone

Actions: Elevates the hyoid bone and the floor of the mouth.

Innervation: A motor branch of the inferior alveolar nerve, a branch of the mandibular division of the trigeminal nerve (V).

Blood Supply: Sublingual Artery