Practical 2

Question 1

Superior Auricular

Answer 1

temporal branches of facial nerve

Question 2

Orbital Part, Orbicularis Oculi

Answer 2

temporal & zygomatic branches of facial nerve

Question 3

Dilatator Naris

Answer 3

superior buccal branches of facial nerve

widens, dilates nostrils & anterior nasal aperture

Question 4

Levator Labii Superioris

Answer 4

buccal branches of facial nerve

raises & everts upper lip

Question 5

Orbicularis Oris

Answer 5

buccal and mandibular branches of facial nerve

close mouth; purse & protrude lips

Question 6

Mentalis

Answer 6

mandibular branches of facial nerve

raises & protrudes lower lip

Question 7

Levator Palpebra Superioris

Answer 7

oculomotor nerve

elevates upper eyelid

Question 8

Lateral Rectus

Answer 8

abducent nerve

abducts cornea

Question 9

Superior Oblique

Answer 9

trochlear nerve

depress & abduct the cornea; intorsion

Question 10

Posterior Auricular

Answer 10

posterior auricular branch of facial nerve

Question 11

Temporalis

Answer 11

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

elevate & retract mandible

Question 12

Masseter

Answer 12

masseteric branch, mandibular division, trigeminal nerve

elevate & protract mandible

Question 13

Medial Pterygoid

Answer 13

medial pterygoid branch, mandibular division, trigeminal nerve

elevate & protract mandible; assists in gliding or rotatory movement

Question 14

Lateral Pterygoid

Answer 14

lateral pterygoid branch, mandibular division, trigeminal nerve

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

Question 15

Anterior Scalene

Answer 15

ventral rami C2-C6

Question 16

Middle Scalene

Answer 16

ventral rami C3-C8

Question 17

Inferior Oblique

Answer 17

oculomotor

elevate & abduct the cornea; extorsion

Question 18

Medial Rectus

Answer 18

oculomotor

adducts cornea

Question 19

Inferior Rectus

Answer 19

oculomotor

depress & adduct the cornea; extorsion

Question 20

Depressor Labii Inferioris

Answer 20

mandibular branch of facial nerve

draws lower lip down

Question 21

Depressor Anguli Oris

Answer 21

mandibular branch of facial nerve

draws corner of mouth down & out

Question 22

Occipitalis Belly, Epicranius

Answer 22

posterior auricular branch of facial nerve

pulls scalp backward

Question 23

superior rectus

Answer 23

oculomotor

elevate & adduct the cornea; intorsion

Question 24

Risorius

Answer 24

buccal and mandibular branches of facial nerve

draws back angle of mouth

Question 25

Buccinator

Answer 25

buccal branches of facial nerve compress cheeks against teeth

Question 26

Levator Anguli Oris

Answer 26

buccal branches of facial nerve raises angle of mouth; produces nasolabial groove

Question 27

Zygomaticus Major

Answer 27

buccal branches of facial nerve draws angle of mouth up and out

Question 28

zygomaticus minor

Answer 28

buccal branches of facial nerve raises upper lip; produces nasolabial groove

Question 29

Levator Labii Superioris Alaeque Nasi

Answer 29

buccal branches of facial nerve raises & everts upper lip; dilates nostril

Question 30

Procerus

Answer 30

superior buccal branches of facial nerve depress eyebrows medially

Question 31

Compressor Naris

Answer 31

superior buccal branches of facial nerve compress cartilage at bridge of nose

Question 32

Depressor Septi

Answer 32

superior buccal branches of facial nerve widens nostril

Question 33

Palpebral Part, Orbicularis Oculi

Answer 33

temporal and zygomatic branches of facial nerve

Question 34

Frontalis Belly, Epicranius

Answer 34

temporal branches of facial nerve pulls scalp forward; wrinkles forehead & raises eyebrows

Question 35

Corrugator Supercilii

Answer 35

temporal branches of facial nerve draws eyebrow medial & down (forms vertical furrow between eyebrows)

Question 36

Temporoparietalis

Answer 36

temporal branches of facial nerve