Head and Neck

Question 1

Anterior digastric innervation

Answer 1

mylohyoid branch of inferior alveolar n (from CN V3)

Question 2

posterior digastric innervation

Answer 2

facial n.

Question 3

geniohyoid innervation

Answer 3

ventral ramus of C1 via CN XII

Question 4

mylohyoid innervation

Answer 4

mylohyoid branch of inferior alveolar n. (from CN V3)

Question 5

Omohyoid innervation

Answer 5

ansa cervicalis (C1-C3)

Question 6

anterior scalene innervation

Answer 6

lower ventral rami of cervical spinal n.

Question 7

middle scalene innervation

Answer 7

lower ventral rami of cervical spinal n.

Question 8

posterior scalene

Answer 8

ventral rami of cervical spinal n. (C6-C8)

Question 9

Sternocleidomastoid innervation

Answer 9

accessory nerve & C1-C2

Question 10

sternohyoid innervation

Answer 10

ansa cervicalis (C1-C3)

Question 11

Sternothyroid innervation

Answer 11

ansa cervicalis (C1-C3)

Question 12

Stylohyoid inervation

Answer 12

facial n.

Question 13

thyrohyoid innervation

Answer 13

ventral ramus of C1 via CN XII

Question 14

cricothyroid innervation

Answer 14

external laryngeal n. (CN X)

Question 15

masseter attachments

Answer 15

zygomatic arch
to
angle of mandible & lateral aspect of ramus

Question 16

masseter function

Answer 16

elevation, protraction, and retraction (deep fibers) of mandible

Question 17

masseter innervation

Answer 17

mandibular nerve (V3)

Question 18

temporalis attachments

Answer 18

temporal fossa
to
coronoid process & anterior border of ramus of mandible

Question 19

temporalis function

Answer 19

elevation and retraction of mandible

Question 20

temporalis innervation

Answer 20

mandibular nerve (V3)

Question 21

lateral pterygoid attachments

Answer 21

infratemporal surface of the sphenoid & lateral surface of the lateral pterygoid plate
to
neck of mandible & TMJ disc

Question 22

lateral pterygoid function

Answer 22

depress mandible

protract & act with the ipsilateral medial pteryoid to rotate mandible and produce side to side movements with chewing

Question 23

lateral pterygoid innervation

Answer 23

mandibular nerve (V3)

Question 24

Medial pterygoid attachments

Answer 24

medial surface of lateral pterygoid plate & adjacent maxilla
to
medial aspect of angle of the mandible

Question 25

medial pterygoid function

Answer 25

elevation of mandible | act with ipsilateral lateral pteryoid to rotate mandible and produce side to side movements during chewing

Question 26

medial pterygoid innervation

Answer 26

mandibular nerve (V3)

Question 27

Muscles innervated by inferior ramus of the oculomotor n.

Answer 27

inferior oblique inferior rectus medial rectus

Question 28

Muscles innervated by the superior ramus of the oculomotor n.

Answer 28

levator palpebrae superioris | superior rectus

Question 29

Muscle innervated by abducens n.

Answer 29

lateral rectus

Question 30

muscle innervated by trochlear n.

Answer 30

superior oblique

Question 31

buccinator attachments

Answer 31

alveolar processes of the maxilla & mandible, pterygoid hamulus & pterygomandibular raphe to angle of mouth

Question 32

buccinator function

Answer 32

compresses cheek when blowing

Question 33

buccinator innervation

Answer 33

buccal branch of facial n.

Question 34

depressor anguli oris attachments

Answer 34

mandible to angle of mouth

Question 35

depressor anguli oris function

Answer 35

depresses angle of mouth laterally (frown)

Question 36

depressor anguli oris innervation

Answer 36

buccal & mandibular branch of facial n.

Question 37

depressor labii inferioris attachments

Answer 37

oblique line of mandible to skin of lower lip

Question 38

depressor labii inferioris function

Answer 38

depresses lower lip (pouting)

Question 39

depressor labii inferioris innervation

Answer 39

mandibular branch of facial n.

Question 40

frontalis attachments

Answer 40

superficial fascia of the eyebrows to epicranial aponeurosis

Question 41

frontalis function

Answer 41

protraction of scalp | elevate eyebrows and nose (surprise)

Question 42

frontalis innervation

Answer 42

temporal branch of facial n.

Question 43

levator labii superioris attachments

Answer 43

inferior orbital margin to lateral aspect of the upper lip

Question 44

levator labii superioris function

Answer 44

raises and everts upper lips (sadness)

Question 45

levator labii superioris innervation

Answer 45

buccal and zygomatic branches of facial n.

Question 46

nasalis attachments

Answer 46

maxilla lateral & inferior to the nasal notch to bridge & ala of the nose

Question 47

naslis function

Answer 47

transverse fibers compress | alar fibers widen masal aperture (flare nostrils)

Question 48

nasalis innervation

Answer 48

buccal branch of facial n.

Question 49

orbicularis oculi attachments

Answer 49

orbital margin & medial palpebral ligament to superficial fascia of the eyelid

Question 50

orbicularis oculi function

Answer 50

palpebral sphincter (close eyes, winking)

Question 51

orbicularis oculi innervation

Answer 51

temporal and zygomatic branches of facial n.

Question 52

orbicularis oris attachments

Answer 52

angle of mouth to superficial fascia of upper lip

Question 53

orbicularis oris function

Answer 53

oral sphincter (close mouth, kissing)

Question 54

orbicularis oris innervation

Answer 54

buccal and mandibular branches of facial n.

Question 55

platysma attachments

Answer 55

lower border of mandible to superficial fascia of skin of neck overlying clavicle

Question 56

platysma function

Answer 56

wrinkles anterior nuchal skin

Question 57

platysma innervation

Answer 57

cervical branch of facial n.

Question 58

zygomaticus major attachments

Answer 58

zygomatric bone to angle of mouth

Question 59

zygomaticus major function

Answer 59

raises angle of mouth (smiling)

Question 60

zygomaticus major innervation

Answer 60

buccal and zygomatric branches of facial nerve