Skip to content

Depressor labii inferior

Contents

Anatomy pictures

Depressor labii inferior - lateral view

Depressor labii inferior

Muscle attachment zones

Videos - treatment techniques

ANATOMY:

Position

  • Medial part is superficial
  • Lateral part is deep

Origin

  • Obliquue line of mandibula

Insertion

  • Midline on the skin of the lower lip

Main function

  • Lower lip
    • Depression

Secondary function

  • Lower lip
    • Lateral retraction lower lip
    • Evertion lower lip

Nerve innervation

  • Segmental
    • Facial nerve / CN VII, mandibular branch

Arterial supply

  • Facial artery