Name
Pronunciation
(men-tA-lis)
Origin/Proximal Attachment
From the incisive fossa of the mandible.
Insertion/Distal Attachment
Into the skin of the chin.
Action/Relevance
Raises and protrudes lower lip; wrinkles the chin as in an expression of doubt or distain.
Innervation
Mandibular branch of the facial nerve.