Exam 1: Facial N

Question 1

Facial nerve carries both ___ and ___

Answer 1

Motor and sensory

Question 2

Nickname of CN7

Answer 2

Nerve of facial expression

Question 3

CN 7 is mostly

Answer 3

Motor

Question 4

Special sensory carried in CN7

Answer 4

Taste

Question 5

Primary nucleus of origin for CN7

Answer 5

Motor nucleus of facial N

Question 6

All nuclei of origin are

Answer 6

LMN

Question 7

____ contributes preganglionic parasympathetic fibers to facial nerve

Answer 7

Superior salivary nucleus

Question 8

Sensory fibers carried in facial N terminate in

Answer 8

Upper part of solitary nucleus

Question 9

Cell bodies of first order sensory neurons found in

Answer 9

Geniculate ganglion

Question 10

General sensory from ___ and ____ carried in geniculate ganglion to solitary nucleus

Answer 10

External ear

Lateral tympanic membrane

Question 11

Taste information carried from ant part of tongue carried in

Answer 11

Chorda tympani

Question 12

Motor nucleus of facial nerve receive info from

Answer 12

Both cerebral hemispheres

Reticular formation

Question 13

Part of motor nucleus that supplies muscle in inferior part of face comes from

Answer 13

Contralateral cortex

Question 14

Preganglionic parasympathetic fibers synapse in either

Answer 14

Pterygopalatine ganglion

Submandibular ganglion

Question 15

Postganglionic parasympathetic fibers supply lacrimal gland, _____, and glands in oral and nasal cavities

Answer 15

Submandibular and sublingual glands

Question 16

AO of facial N

Answer 16

Medullopontine sulcus

Question 17

Before exiting CNS, fibers from motor nucleus travel ____ and arch around ____

Answer 17

Posteriorly

Abducens nuclei

Question 18

Geniculate ganglion located in

Answer 18

External genu of facial nerve

Question 19

Greater petrosal nerve re-enters temporal bone through

Answer 19

Foramen lacerum

Question 20

Greater petrosal N joins

Answer 20

Pterygopalatine ganglion

Question 21

Greater petrosal N carries PSNS fibers that will stimulate secretions from

Answer 21

Lacrimal gland
Nasal gland
Palatial glands

Question 22

Greater petrosal N aka

Answer 22

Superficial petrosal N

Question 23

2nd Nerve given off inside facial canal

Answer 23

Nerve to stapedius

Question 24

Only nerve to contain only motor fibers that leave facial N in facial canal

Answer 24

Nerve to stapedius

Question 25

Smallest muscle

Answer 25

Stapedius

Question 26

3rd branch coming off facial N in facial canal

Answer 26

Chorda tympani

Question 27

Chorda tympani leaves temporal bone via

Answer 27

Pterygotympanic fissure

Question 28

Chorda tympani combines with ___

Answer 28

Lingual N (mandibular division, trigeminal)

Question 29

All preganglionic parasympathetic fibers given off before exiting

Answer 29

Stylomastoid foramen

Question 30

Chorda tympani carries

Answer 30

Preganglionic parasympathetic fibers | Taste information

Question 31

After exiting stylomastoid foramen, only ___ and __ fibers are carried

Answer 31

Motor | General sense

Question 32

Three branches of facial nerve btw stylomastoid foramen and parotid gland

Answer 32

Digastric branch Stylohyoid branch Posterior auricular N

Question 33

Digastric branch supplies

Answer 33

Posterior belly of digastric muscle

Question 34

Stylohyoid branch supplies

Answer 34

Stylohyoid muscle

Question 35

Posterior auricular N divides into

Answer 35

Occipital and auricular branches

Question 36

Occipital branch supplies

Answer 36

Occipitalis belly of occipitofrontalis

Question 37

Auricular branch supplies

Answer 37

Posterior auricular muscle

Question 38

Once the nerve enters the parotid gland it becomes

Answer 38

Parotid plexus

Question 39

Parotid plexus gives rise to two trunks

Answer 39

Temporofacial | Cervicofacial

Question 40

Two trunks then give rise to these 5 major branches

Answer 40

``` Temporal Zygomatic Buccal Marginal mandibular Cervical ```

Question 41

Temporal branches supply

Answer 41

Intrinsic auricular | Superior and anterior auricular muscles

Question 42

Temporal branches w/ zygomaticotemporal N and auriculotemporal N supply

Answer 42

Orbicularis oculi Corrugator supercilii Frontal belly/epicranius

Question 43

Zygomatic branches supply

Answer 43

Orbicularis oculi

Question 44

Buccal branches supply

Answer 44

Buccinator Orbicularis oris Levator anguli oris

Question 45

Marginal mandibular branch supplies

Answer 45

Risorius | Muscles of chin and lower lip

Question 46

Cervical branch travels inferiorly to supply

Answer 46

Platysma

Question 47

Bell’s palsy is usually

Answer 47

Unilateral and temporary