Muscles Of Facial Expression Flashcards
Procerus
Origin: Nasal bone
Insertion: Frontal bone and mm of frontalis
ACTION: Elevates skin of nose
Orbicularis Oculi
Origin: Mostly from maxilla
Insertion: Brim of the eyelid
ACTION: Closes the eye
Orbicularis Oris
Origin: Muscle tissue of various facial mm
Insertion: Brim of the lip
ACTION: Closes the mouth
Zygomaticus Major
Origin: Zygomatic bone
Insertion: Angle of the mouth
ACTION: Elevates the angles of the mouth
Depressor Anguli Oris
Origin: Body of mandible
Insertion: Angle of the mouth
ACTION: Depresses the angle of the mouth
Mentalis
Origin: Mental region of the mandible
Insertion: Skin of the chin
ACTION: Retracts the skin of the chin
Buccinator
Origin: Alveolar border of the maxilla and mandible
Insertion: Angle of the mouth
ACTION: To suck in the cheek
Platysma
Origin: Mandible
Insertion: Skin over clavicle
ACTION: Contracts skin of the neck
Frontalis
Origin: Muscles of the eyebrow region
Insertion: Galea Aponeurotica
ACTION: Elevates eyebrows and draws scalp forward