Transcript Facial muscles - Morley College

Muscular
system
By the end of this session
you will be able to:
• Name the main facial muscles
• Identify the position and action of
facial muscles
• Label a facial muscle diagram
Frontalis
Position
forehead
Action
raises the eyebrows
Corrugator
Position
Action
eyebrows
draws the eyebrows together
Position
Action
temple region
raises lower jaw, mastication
Orbicularis occuli
Position
Action
around the eyes
controls eyelid movement
Nasalis
Position
Action
sides of the nose/nostrils
controls movement of nostrils
Procerus
Position
Action
bridge of the nose
wrinkles the skin on the nose
Lavator labii superioris
Position
Action
radiates from upper lip
lifts upper lip
Zygomaticus
Position
Action
across the cheek
lifts the corner of the lip
Masseter
Position
Action
side of the cheeks
mastication
Buccinator
Position
across the cheek
Action
compresses cheeks
Risorius
Position
either side of mouth
Action
grinning
Depressor anguli oris
Position
radiates from lower lip
Action
pulls the corners of the mouth down
Depressor labii inferioris
Position
Action
Radiates from lower lip
Pushes the lower lip out and up
Mentalis
Position
Action
Middle of chin
Raises and protrudes lower lip
Orbicularis oris
Position
Action
Around the lips
Controls lip movement
Platysma
Position
Action
Front of neck
Pulls lower jaw down
Sterno cleido mastoid
Position
Action
Sides of the neck
Moves head side to side
Pectoralis
Position
Action
Chest muscle
Adducts arms
Deltoid
Position
Action
Caps the shoulder
Abducts arms
Trapezius
Position
Action
Upper back
Pulls the scapula back,
pulls the head back
Digastric
Position
Action
Floor of mouth/under the jaw
Depresses the mandible
Name the muscle which:
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Raises the eyebrows
Purses the lips-whistling
Draws the corners of the lips out
Pushes the lower lip up and out
Draws the eyebrows together
Compresses the cheeks
Tenses the neck