module 23

Question 1

occipitofrontalis

Answer 1

two bellies: frontal belly and occipital belly
elevated eyebrows and wrinkles forehead

Question 2

orbicularis oculi

Answer 2

surrounds eye (closes eyelids) - forms continuous ring
palpebral part - closes gently
orbital part - closes it tight

Question 3

corrugator supercilii

Answer 3

small muscle found deep in eyebrows
pulls eyebrows medially and inferiorly

Question 4

three muscles of the nose

Answer 4

1. procerus
2. nasalis
3. levator labii superioris alaeque nasi

Question 5

procerus

Answer 5

between eyebrows
creates eyebrow wrinkles

Question 6

nasalis

Answer 6

largest muscle of nose

2 parts:
transverse part and alar part

moves/flares nostrils

Question 7

levator labii superioris alaeque nasi

Answer 7

flares nostrils and raises upper lip
sides of nose

Question 8

orbicularis oris

Answer 8

around mouth
innervated by buccal nerve
close mouth/whistle

Question 9

muscles of upper lip

Answer 9

risorius
levator anguli oris
zygomaticus minor
zygomaticus major
levator labii superioris
levator labii superioris alaeque nasi

Question 10

risorius

Answer 10

connects to corners of mouth, retracts them

Question 11

levator anguli oris

Answer 11

corner of the mouth upward
raises the corner of mouth

Question 12

zygomaticus major

Answer 12

connects to corner of mouth from zygomatic bone - elevates corner of mouth to smile

Question 13

zygomaticus minor

Answer 13

originates from zygomatic bone and inserts into skin of upper lip

Question 14

levator labii superioris

Answer 14

upper lip from maxilla

Question 15

muscles that pull the upper lip upward

Answer 15

levator labii superioris, zygomaticus minor, levator labii superioris alaeque nasi

Question 16

muscles of lower lip

Answer 16

depressor anguli oris and depressor labii inferioris

Question 17

depressor anguli oris

Answer 17

mandible to corner of mouth (goat T beard)
pulls corner of mouth downwards

Question 18

depressor labii inferioris

Answer 18

mandible –> bottom lip

Question 19

mentalis

Answer 19

muscle of the chin
protrudes and pouts chin

Question 20

platysma

Answer 20

lower face and neck muscle
from clavicle to mandible

Question 21

buccinator

Answer 21

deep in cheek

Question 22

flare nostrils using what two muscles

Answer 22

nasalis and levator labii superioris alaeque nasi

Question 23

which CN innervates facial muscles (everything except levator palpebrae superioris)

Answer 23

CN VII (facial)

Question 24

what CN innervates levator palpebrae superioris

Answer 24

CN III (occulomotor)

Question 25

The parietal bones fuse together at the _____ suture.

Answer 25

sagittal

Question 26

Anteriorly, the parietal bones meet the frontal bone at the _______ suture

Answer 26

coronal

Question 27

posteriorly parietal bones meet the occipital bone at the ________ suture

Answer 27

lambdoid

Question 28

The parietal bones meet up with the temporal bone at their inferior border to form the ______ suture

Answer 28

squamous