描述

Origin: Oblique line of the mandible, between the symphysis and the mental foramen

Insertion: Integument of the lower lip, Orbicularis oris fibers, its fellow of the opposite side

Nerve: Facial nerve

Action: Depressthe lower lip

Description:
Depressor labii inferioris is a small quadrilateral muscle. It arises from the oblique line of the mandible, between the symphysis and the mental foramen, and passes upward and medialward, to be inserted into the integument of the lower lip, its fibers blending with the Orbicularis oris, and with those of its fellow of the opposite side. At its origin it is continuous with the fibers of the Platysma. Much yellow fat is intermingled with the fibers of this muscle.


影像

下载e-Anatomy

手机和平板用户可以在Appstore或GooglePlay下载e-Anatomy

e-Anatomy 在Appstore e-Anatomy 在Googleplay