Craniofacial Muscles

Question 1

How many buccolabial muscles are there?

Answer 1

11

Question 2

Where is the orbicularis oris located and what are some functions included?

Answer 2

Around the lips
lip pouting, puckering, compressing, closes mouth, assists in speech & expressions

Question 3

Where is the buccinator located and what are some functions included?

Answer 3

Cheeks
offers protection to cheek from mastication, prevents contents from escaping oral vestibule & compresses inflation of the cheek

Question 4

Where is the levator labii superiors located and what are some functions included?

Answer 4

Nasal & upper lip area
assists in elevating & everting with buccolabial muscles, grinning & smiling

Question 5

Where is the depressor labii inferioris located and what are some functions included?

Answer 5

Chin, surrounding mentalis
positions lips, controls shape of lips, & controls movement of lips

Question 6

What is an another name for the depressor labii inferioris?

Answer 6

Quadrangular

Question 7

Where is the levator labii superioris alaeque nasi located and what are some functions included?

Answer 7

Runs from upper nose to lower nose
elevates & everts upper lip &, shapes nasal furrow

Question 8

Where is the mentalis located and what are some functions included?

Answer 8

Center chin
depresses or everts lower lip, shapes lip for drinking & such, & sadness, doubt

Question 9

Where is the risorius located and what are some functions included?

Answer 9

Runs from outer cheek to inside lip
pulls muscles in face to produce a smile

Question 10

Where is the levator anguli oris located and what are some functions included?

Answer 10

Aligned from mid nasal to corner lips
elevate lips & smile

Question 11

Where is the depressor anguli oris located and what are some functions included?

Answer 11

Triangular muscle on each side of chin
depresses mouth, anger, sadness, speaking, & eating

Question 12

Where is the zygomaticus major located and what are some functions included?

Answer 12

Extends from cheek to corner mouth
elevates, everts mouth, & produces smile

Question 13

Where is the zygomaticus minor located and what are some functions included?

Answer 13

Right above zygomaticus major
smile, frown, & grimace

Question 14

How many nasal muscles are there?

Answer 14

2

Question 15

Where is the nasalis located and what are some functions included?

Answer 15

Covers entire nose, flaring nostrils, sneezing, & enhances deep breathing

Question 16

What are the two parts of the nasalis?

Answer 16

Alar (front) & transverse (dorsum)

Question 17

Where is the procerus located and what are some functions included?

Answer 17

Triangular in between eyebrows, eyebrow movement & facial expressions

Question 18

How many eyelid muscles are there?

Answer 18

2

Question 19

Where is the orbicularis oculi located and what are some functions included?

Answer 19

Around the entire eye, closes & opens eyes, protects eyes, & facilitates eyes.

Question 20

How many parts are there in orbicularis oculi, what are they, & where are they located?

Answer 20

3, orbital part, upper part- below eyebrow
palpebral part, central part- eyelids
deep palpebral part, under eye- lower lid & below

Question 21

Where is the corrugator supercilii located and what are some functions included?

Answer 21

Eyebrows, raises eyebrows

Question 22

How many cranium & neck muscles are there?

Answer 22

2

Question 23

Where is the occipitofrontalis located and what are some functions included?

Answer 23

forehead and back of head, scalp movement, elevates forehead, & wrinkles forehead

Question 24

How many parts are there to the occipitofrontalis, what are they, & where are they?

Answer 24

2, frontal part- forehead
occipital part- back, lower, head

Question 25

Where is the platysma located and what are some functions included?

Answer 25

chin, ascends neck to collarbone/shoulder region, assists with mouth movement

Question 26

How many ear muscles are there?

Answer 26

1

Question 27

Where is the auricular located and what are some functions included?

Answer 27

ear and around ear, assists in yawning, smiling, & flexing ears

Question 28

How many parts are there in the auricular, what are they, & where are they?

Answer 28

3, auricularis anterior- below temples
auricularis posterior- behind ear
auricularis superior- above ears/ side of head