Week 3 slides-The lips and muscles of facial expression Flashcards
What is the function of the zygomaticus minor?
It raises the upper lip.
What moves the corners of the lips back and up?
zygomaticus major
What is the function of the risorius?
It draws the corners of the mouth back.
What helps move the lower jaw and tense the neck?
Platysma
What muscles are responsible for curling the lips?
Mentalis muscles.
What is the function of the depressor labii inferioris?
It lowers the lip.
What is the function of the depressor anguli oris?
It lowers the corners of the mouth.
What muscle moves the lips forward and together?
Orbicularis oris.
What moves the corner of the mouth upwards?
Levator Anguli Oris.
What is the cheek muscle called?
The buccinators.
What raises the upper lip?
Levator Labii Superioris
What does the nasalis do?
It flares the nostrils.
What muscle is used to close the eyelids?
The orbicularis oculi.
What is the function of the occipito-frontalis?
It raises the eyebrows and wrinkles forehead.
List the muscles used in a laugh.
Risorious
Zygomatic major + minor
Orbicularis Oris
What muscle would be involved in closing the lips?
Orbicularis Oris
Name the 2 muscles involved in raising the upper lip.
Zygomaticus Minor
Levator Labii Superior
The depressor labiii inferior ______ the _____ _____.
lowers, bottom lip
What muscle is involved in rounding the lips?
orbicularis oris
The mentalis and orbicular oris are involved in _____ the lips.
protruding
What movement of the lips would all of the following muscles have a role in:
Buccinator
Zygomaticus major
Risorious
retracting (drawing back) the angle of the mouth.
What 2 muscles would raise the angle of the mouth?
Levator Anguli Oris
Zygomaticus Major
From the ages 9 to 16 the ____, ______ and _____ grow.
tongue, mandible, lips
