facial muscles by nicky adams we are going to explore the various facial muscles then learn the...
TRANSCRIPT
Facial Muscles
By
Nicky Adams
• We are going to explore the various facial muscles
• Then learn the various functions of these muscles
AIMS
These are the names of the muscles that move the head:
•Sternomastoid
•Trapezius
Sternomastoid• This muscle runs from sternum to the clavicle bone, and the temporal bone
• It flexes the neck, rotates and bows the head
Trapezius• This is a large triangular muscle, covering the back of the neck and upper back
• It draws the head backwards, and allows movement at the shoulder
These are the muscles of mastication:
•Masseter
•Temporalis
Masseter• This muscle is found around the cheek area, it extends from the zygomatic bone to the mandible
• It clenches the teeth, closes and raises the lower jaw
Temporalis• It extends from the temples at the sides of the head, to the mandible
• It raises the jaw and draws it backwards, as in chewing
These are the muscles of facial expression• Occipital-frontalis
• Corrugator
• Orbicularis oculi
• Risorius
• Buccinator
• Zygomaticus
• Orbicularis oris
• Mentalis
• Depresor labii
• Platysma
Occipital-frontalis• This muscle is found at the forehead, and runs to the occipital region
• This muscle raises the eyebrows
• Giving a surprised facial expression
Corrugator• This muscle is found between the eyebrows
• It draws the eyebrows together
• Making your frown
Orbicularis oculi• This muscle surrounds the eyes
• It closes the eyelid
• Used when winking
Risorius• This muscle extends diagonally from the corners of the mouth
• It draws the mouth corners outwards
• Used when smiling
Buccinator• This muscle is found inside the cheeks
• It compresses the cheeks
• Is used when blowing
Zygomaticus• This muscle extends diagonally from the corners of the mouth
• Lifts the mouth corners, upwards and outwards
• Is used when smiling and laughing
Orbicularis oris• This muscle surrounds the mouth
• It is used to purse the lips, and closes the mouth
• It is used to pout and kiss
Mentalis• This muscle is found around the chin
• It raises the lower lip, causing the chin to wrinkle
• It will give a doubt facial expression
Depressor labii• This muscle extends over the chin
• It draws down the mouths corners
• Is used when sulking
Platysma• This muscle is found at the sides of the neck
• It draws down the mouths corners downwards and backwards
• It is used when we are scared frightened (fear, horror)
THE END