Face muscles Flashcards
What is the action of the buccinator?
compression of cheeks, pulls corner of mouth laterally
What is the innervation of the buccinator?
facial nerve
What is the action of the corrugator?
draws eyebrows together as in frowning
What is the innervation of the corrugator?
facial nerve
What is the action of the depressor anguli oris?
pulls angle of mouth downward and laterally
What is the innervation of the depressor anguli oris?
facial nerve
What muscle compresses the cheeks and pull the corner of the mouth laterally?
buccinator
What muscle draws the eyebrows together as in frowning?
corrugator
What muscle pulls the angle of the mouth downward and laterally?
depressor anguli oris
What is the action of the levator anguli oris?
pulls angle of mouth upward
What is the innervation of the levator anguli oris?
facial nerve
What muscle pulls the angle of the mouth upward?
levator anguli oris
What is the action of the levator labii superioris?
raises upper lip, dilates nostrils
What is the innervation of the levator labii superioris?
facial nerve
What is the action of the depressor labii inferioris?
pulls lower lip downward
What is the innervation of the depressor labii inferioris?
facial nerve
What muscle raises the upper lip and dilates the nostrils?
levator labii superioris
What muscles pulls the lower lip downward?
depressor labii inferioris
What is the action of the epicranius (frontalis, galea aponeurotica)?
raises eyebrows, wrinkles skin of forehead horizontally
What is the innervation of the epicranius (frontalis, galea aponeurotica, occipitalis)?
facial nerve
What is the action of the epicranius (occipitalis)?
draws scalp posteriorly
What muscle raises the eyebrows and wrinkles the skin of the forehead horizontally?
epicranius (frontalis, galea aponeurotica)
What muscle draws the scalp posteriorly?
epicranius (occipitalis)
What is the action of the mentalis?
raises and protrudes lower lip, wrinkles chin
What is the innervation of the mentalis?
facial nerve
What muscle raises and protrudes the lower lip, wrinkles chin?
mentalis
What is the action of the orbicularis oculi?
closes the eyelids and tightens skin of forehead
What is the innervation of the orbicularis oculi?
facial nerve
What muscle closes the eyelids and tightens the skin of the forehead?
orbicularis oculi
What is the action of the orbicularis oris?
closes and protrudes the lips
What is the innervation of the orbicularis oris?
facial nerve
What muscle closes and protrudes the lips?
orbicularis oris
What is the action of the platysma?
depresses mandible, draws angle of mouth downward, tightens and wrinkles skin of neck
What is the innervation of the platysma?
facial nerve
What muscle depresses the mandible, draws the angle of the mouth downward, tightens and wrinkles the skin of the neck?
platysma
What is the action of the procerus?
wrinkles skin between eyebrows
What is the innervation of the procerus?
facial nerve
What muscle wrinkles the skin between the eyebrows?
procerus
What is the action of the risorius?
pulls angle of mouth backwards laterally
What is the innervation of the risorius?
facial nerve
What muscle pulls the angle of the mouth backwards laterally?
risorius
What is the action of the zygomaticus major/minor?
raise angle of mouth
What is the innervation of the zygomaticus major/minor?
facial nerve
What muscle raises the angle of the mouth?
zygomaticus major/minor
Name all 14 face muscles.
buccinator, corrugator, platysma, risorius, procerus, zygomaticus major/minor, epicranius (frontalis, galea aponeurotica, occipitalis), levator anguli oris, depressor anguli oris, orbicularis oris, orbicularis oculi, levator labii superioris, depressor labii inferioris, mentalis