University:
Arizona State University
Course:
BIO 201 | Human Anatomy & Physiology I
Academic year:

2021
Views:

267

Pages:

4
Author:

Hallie Randolph

MUSCLES OF FACIAL EXPRESSION Objectives ◦ Identify main facial features. ◦ Identify muscles of facial expression and their action and innervation. ◦ Discuss motor branches of the facial nerve after it exits the stylomastoid foramen. ◦ Discuss some clinical correlations: Shingles Superficial features ◦ Palpebral fissure looking someone eyes opening pfYYPPgha orner ◦ Medial canthus netting've Therapy ◦ Lateral canthus ◦ Superciliary arch i ◦ Naris ◦ ◦ ◦ ◦ Ala of nose Nasal columella Philtrum groove Nasolabial sulcus themiddle of intuff in i p nostrils fromnose tolips ◦ Oral fissure ◦ ◦ ◦ ◦ ◦ Oral commissures cornersofmouth theft makes Modiolus node or Mentolabial sulcus Mental protuberance elevation at chin buttchin Tubercle of upper lip U shaped on upper h fistfthy lip ◦ Skin ◦ SMAS (Superficial Muscular Aponeurotic System) connectall muscles L determine attachment of muscles Superficial features ◦ Palpebral fissure ◦ Medial canthus ◦ Lateral canthus ◦ Naris ◦ ◦ ◦ ◦ I Ala of nose Nasal columella Philtrum Nasolabial sulcus ◦ Oral fissure ◦ ◦ ◦ ◦ ◦ Oral commissures Modiolus Mentolabial sulcus Mental protuberance Tubercle of upper lip ◦ Skin ◦ SMAS (Superficial Muscular Aponeurotic System), organized fibrous network, facial fasciae, facial muscles. L everything below the eye Fig. 21.3 Gray’s Clinical Photographic Dissector of the Human body 2nd ed.