Anatomy 2 - Muscles Of Superficial Face

Front 1

what nerve innervates the muscles of facial expression

Back 1

facial nerve (CN VII )

Front 2

what kind of nerve is the facial nerve

Back 2

a Special Visceral Efferent nerve

Front 3

where is the CN VII located

Back 3

in subcutaneous fascia

Front 4

where does the facial nerve take its origin and where does it insert into

Back 4

-origin = on bone or in connective tissue
-inserts into = skin or adjacent muscle

Front 5

which pharengeal arch does the facial nerve come from

Back 5

second pharyngeal arch musculature

Front 6

typically where is the facial nerve organized around

Back 6

orifices (openings) eyes, nose, mouth, ear, and also the scalp

Front 7

what is the epicranius

Back 7

muscles of the scalp formed by 2 muscles and the GALEA aponeurotica

Front 8

what are the muscles of the epicranius

Back 8

occiputalis and frontalis muscles

Front 9

where is the occiputalis muscle located and what is it innervated by

Back 9

-located = occipital region
-innervated by = POSTERIOR AURICULAR NERVE (from facial nerve)

Front 10

where is the frontalis located and what is the function and origin of the muscle

Back 10

located = in the forehead
origin = in muscles of the eyebrow
function = raises the eyebrows

Front 11

what is the frontalis muscle innervated by

Back 11

the temporal branch of CN VII (facial nerve)

Front 12

what does the occiputalis and frontalis muscles insert into

Back 12

the GALEA APONEUROTICA (an aponeurotic sheet)

Front 13

which muscles are found around the orbit

Back 13

orbicularis oculi and corrugator muscles

Front 14

what parts does teh orbicularis oculi muscle divide into

Back 14

palpebral part and orbital part

Front 15

where is the palpebral part of the oribicularis oculi muscle located and what is the function

Back 15

located- in the eyelids going MEDIAL to LATERAL
function- blinks the eye lids

Front 16

where is the orbital part of the orbicularis oculi muscle located and what is its function

Back 16

located - encircles the eye, contributing a little to the eyebrow and cheek
function- forcefully closes the eye

Front 17

where is the corrugator muscle locted and what is its function

Back 17

located- DEEP to the obrbicularis oculi
funtion- brings the eyebrows together

Front 18

what is the origin and insertion of the corrugator muscle

Back 18

origin- MEDIAL aspect of the supraorbital bone
insertion- frontalis muscle

Front 19

which muscles have dual innervation and what are they innervated by

Back 19

-orbicularis oculi and corrugator muscles
-innervated by the TEMPORAL and ZYGOMATIC BRANCH of VII (facial nerve)

Front 20

what does the Temporal branch of facial nerve innervate

Back 20

innervates:
-frontalis
-orbicularis oris
-corrugator

Front 21

what does the Zygomatic branch of facial nerve innervate

Back 21

innervates:
-orbicularis oris
-corrugator

Front 22

what muscle forms the lips of the mouth and what is the origin, innervatoin, and function of the muscle

Back 22

Orbicularis oris
-Origin - in the mandible LATERAL to incisive fossa, nasal septum, and maxilla
-Inervation - BUCCAL branch of VII
-Function - purses the lips for a kiss

Front 23

which muscles are found inferior to the orbicularis oris

Back 23

(lateral to medial)
-platysma
-risorius
-depressor anguli oris (aka triangularis)
-depressor labii inferioris
-mentalis

Front 24

which muscles are found superior to the orbicularis oris

Back 24

(lateral to medial)
-zygomaticus major
-zygomatiucs minor
-levator labii superioris
-levator labii superioris alaeque nasi
-levator anguli oris

Front 25

what is the location, innervation, and function of the platysma

Back 25

location- comes up from the neck and inserts to the corner of the mouth
innervation- by CERVICAL Branch of VII (facial nerve)
function- can depress the angle of the mouth

Front 26

what is the origin, insertion, innervation, and function of the Risorius muscle

Back 26

origin- fascia of the masseter
insertion- orbicularis oris
innervation- MANDIBULAR and BUCCAL branches of VII
function- it is for smiling

Front 27

which muscles elevate the upper lip

Back 27

levator labii superioris
levator labii superioris alque nasi
zygomaticus minor

Front 28

which muscles elevate the corner of the mouth

Back 28

levator anguli oris
zygomaticus major