Spinal Lab Practical A/I #2

Question 1

What is the innervation of the frontalis belly-epicranius, corrugator supercilii, superior auricular, and temporoparietalis

Answer 1

temporal branches of facial nerve

Question 2

What is the innervation of orbital part-orbicularis oculi and palpebral part-orbicularis oculi?

Answer 2

temporal and zygomatic branches of facial nerve

Question 3

What is the innervation of procerus, compressor nasi, dilator naris, and depressor septi

Answer 3

superior buccal branches of facial nerve

Question 4

What is the innervation of levator labii superioris, levator labii superioris alaeque nasi, zygomaticus minor, zygomaticus major, levator anguli oris, and buccinators?

Answer 4

buccal branches of facial nerve

Question 5

What is the innervation of orbicularis oris and risorius

Answer 5

buccal and mandibular branches of facial nerve

Question 6

What is the innervation of mentalis, depressor labii inferioris, and depressor anguli oris

Answer 6

mandibular branches of facial nerve

Question 7

What is the innervation of levator palpebral superioris, superior rectus, inferior rectus, medial rectus, and inferior oblique

Answer 7

oculomotor nerve

Question 8

What is the innervation of lateral rectus

Answer 8

abducent nerve

Question 9

What is the innervation of superior oblique

Answer 9

trochlear nerve

Question 10

What is the innervation of posterior auricular and occipitalis belly-epicranius

Answer 10

posterior auricular branch of facial nerve

Question 11

What is the innervation of temporalis

Answer 11

anterior and posterior deep temporal branches, mandibular division, trigeminal nerve

Question 12

What is the innervation of masseter

Answer 12

masseteric branch, mandibular division, trigeminal nerve

Question 13

Pulls scalp forward, wrinkles forehead & raises eyebrows

Answer 13

frontalis belly-epicranius

Question 14

pulls scalp backward

Answer 14

occipitalis belly-epicranius

Question 15

depress eyebrows medially

Answer 15

procerus

Question 16

compress cartilage at bridge of nose

Answer 16

compressor naris

Question 17

widens, dilates nostrils & anterior nasal aperture

Answer 17

dilatator naris

Question 18

widens nostril

Answer 18

depressor septi

Question 19

draws eyebrows medial & down (forms vertical furrow between eyebrows)

Answer 19

corrugator supercilii

Question 20

raises & everts upper lip

Answer 20

levator labii superioris

Question 21

raises & everts upper lip; dilates nostril

Answer 21

levator labii superioris alaquae nasi

Question 22

raises upper lip; produces nasolabial groove

Answer 22

zygomaticus minor

Question 23

draws angle of mouth up and out

Answer 23

zygomaticus major

Question 24

raises angle of mouth; produces nasolabial groove

Answer 24

levator anguli oris

Question 25

close mouth; purse & protrude lips

Answer 25

orbicularis oris

Question 26

compress teeth against cheeks

Answer 26

buccinator

Question 27

draws back angle of mouth

Answer 27

risorius

Question 28

raises & protrudes lower lip

Answer 28

mentalis

Question 29

draws lower lip down

Answer 29

depressor labii inferioris

Question 30

draws corner of mouth down & out

Answer 30

depressor anguli oris

Question 31

elevates upper eyelid

Answer 31

levator palpebra superioris

Question 32

elevate & adduct cornea; intorsion

Answer 32

superior rectus

Question 33

depress & adduct the cornea; extorsion

Answer 33

inferior rectus

Question 34

adducts cornea

Answer 34

medial rectus

Question 35

abducts cornea

Answer 35

lateral rectus

Question 36

depress & abduct corneal; intorsion

Answer 36

superior oblique

Question 37

elevate & abduct the cornea; extorsion

Answer 37

inferior oblique

Question 38

elevate & retract mandible

Answer 38

temporalis

Question 39

elevate & protract mandible

Answer 39

masseter

Question 40

elevate & protract mandible; assists in gliding or rotatory movement

Answer 40

medial pterygoid

Question 41

protracts mandible; pulls disc forward; depress chin & assist in gliding or rotary movement

Answer 41

lateral pterygoid

Question 42

What innervates the medial pterygoid

Answer 42

medial pterygoid branch, mandibular division, trigeminal nerve

Question 43

What innervates the lateral pterygoid

Answer 43

lateral pterygoid branch, mandibular division, trigeminal nerve

Question 44

What innervates anterior scalene

Answer 44

ventral rami C2-C6

Question 45

What innervates middle scalene

Answer 45

ventral rami C3-C8