Musculature of the Upper Lip Flashcards
What are the parts of the levator labii superioris?
- orbital
- angular
- zygomatic
Which facial muscle will be attached at the infraorbital margin of the zygomatic and maxillary bones and at the orbicularis oris of the upper lip?
levator labii superioris
What is the function of the levator labii superioris?
raise and evert the upper lip
What is the innervation of the levator labii superioris?
buccal branches of the facial nerve
Which of the facial muscles will be attached to the frontal process of the maxilla and to the orbicularis oris of the upper lip?
levator labii superioris alaeque nasi
What is the function of the levator labii superioris alaeque nasi?
- raise and evert the upper lip
- dilate the nostril
What is the innervation of the levator labii superioris alaeque nasi?
buccal branches of the facial nerve
Which facial muscle will be attached to the maxillary process of the zygomatic bone and to the orbicularis oris of the upper lip near the corner of the mouth?
zygomaticus minor
What facial muscles will produce the nasolabial groove?
- zygomaticus minor
- levator anguli oris
What is the function of the zygomaticus minor?
- raise the upper lip
- produce the nasolabial groove
What is the innervation of the zygomaticus minor?
buccal branches of the facial n.
What facial muscle will attach the temporal process of the zygomatic bone to the orbicularis oris, levator anguli oris, and depressor anguli oris at the corner of the mouth?
zygomaticus major
What is the function of the zygomaticus major?
draws the angle of the mouth up and out
What is the innervation of the zygomaticus major?
buccal branches of the facial n.
Which facial muscle will be attached to the canine fossa of the maxilla and at the corner of the mouth to the orbicularis oris, zygomaticus major, and depressor anguli oris?
levator anguli oris
