Depressor labii inferioris muscle

Authors
Affiliations

Nate Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

OIAN

Muscle Origin Insertion Nerve Action
Depressor labii inferioris

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/The Archive/Anatomy/Skeletal Muscles/Head and Neck/Muscles of Facial Expression/depressor_labii_inferioris.html#action

Origin

Mandible (ant portion of oblique line)1

Insertion

Lower lip at midline; blends with muscle from opposite side1

Innervation

Facial Nerve CN VII1

Action

Pulls lower lip inferiorly and laterally1

Clinical Significance

1.
Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Citation

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