Innervation of Face (week 2) Flashcards Preview

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Flashcards in Innervation of Face (week 2) Deck (36):
0

What three branches arise AFTER the Facial nerve (CN VII) exits the stylomastoid foramen?

Auricularis, Occipitalis and Suprahyoid

1

Nucleus for motor innervation of the face (Facial n. CN VII)

Motor Nucleus of VII (pons)

2

Suprahyoid branch of the Facial nerve innervates what two muscles?

Stylohyoid and Posterior belly of the Digastric muscle

3

What is the final structure CN VII passes through before branching?

Stylomastoid Foramen

4

General Sensation for the face comes from what Cranial Nerve?

Trigeminal (CN V)

5

All of the motor innervation of the face is done by what cranial nerve?

Facial n. (CN VII)

6

What are the three divisions of CN V?

V1 (Opthalmic), V2 (Maxillary), V3 (Mandibular)

7

Sensory cell bodies for General Sensation of the face are found in which ganglion?

Trigeminal Ganglion

8

Where is the location of branching in CN V - V1?

In the Orbit

9

What three main nerves branch from the Opthalmic (V1) nerve in the orbit?

Lacrimal Nerve, Frontal Nerve and Nasociliary Nerve

10

Two smaller branches come from the Frontal nerve. What are they?

Supraorbital nerve and Supratrochlear nerve

11

What nerve branch from V1 of CN V innervates the bridge of the nose?

External Nasal nerve

12

Which nerve branch from V1 of CN V innervates the medial upper eyelid and lacrimal sac?

Infratrochlear nerve

13

The Anterior Ethmoid nerve is a branch from what other branch of V1 from CN V?

Nasociliary nerve

14

What are the two main branches of the Nasociliary nerve from V1 of CN V?

Infratrochlear nerve and Anterior ethmoid nerve

15

What does the Lacrimal nerve branch of V1 (CN V) innervate?

Lateral Upper Eyelid

16

The two nerve branches from the Frontal Nerve branch of V1 innervate the same structures. What are they?

Upper eyelid, Forehead and Scalp

17

As V1 branches off of the Trigeminal Ganglion, what structure does it pass through first?

Cavernous Sinus

18

Just before entering the Orbit, V1 of CN V passes through what structure?

Superior Orbital Fissure

19

What is the smaller nerve branch off of the Anterior Ethmoid nerve that innervates the bridge of the nose?

External nasal nerve

20

Nerve branches from V2 in what space?

Pterygopalatine Fossa

21

Two branches of V2 in Pterygopalatine Fossa

Zygomatic and Infraorbital nerve

22

Zygomatic nerve enters what space after it branches off of V2

Inferior Orbital Fissue --> Orbit

23

Zygomatic branch of V2 gives off two smaller branches. What are they

Zygomaticotemporal and Zygomaticofacial

24

Zygomaticofacial Nerve supplies general sensation to what?

Skin over zygomatic arch

25

Infraorbital nerve gives off what three branches as it exits the infraorbital foramen

Inferior Palpebral, Lateral nasal and Superior Labial

26

Zygomaticotemporal nerve supplies general sensation to what?

Skin over anterior temple

27

V3 branches into what two trunks in what space?

Anterior and Posterior trunks, Infratemporal Fossa

28

What nerve comes off of the Anterior Trunk of V3

Buccal Nerve

29

What nerve comes off of the Posterior Trunk of V3

Auriculotemporal nerve

30

What nerve supplies general sensation to the Cheek and Mandibular buccal gingiva

Buccal nerve

31

After the trunk branching, V3 continues on as what nerve?

Inferior Alveolar Nerve

32

Inferior Alveolar nerve enters what foramen as it passes through the mandible

Mandibular Foramen

33

V3 finally terminates as it exits the mental foramen as what nerve?

The mental nerve

34

Mental nerve supplies general sensation to what structures?

Chin
Lower Lip
Labial Gingiva

35

What nerve supplies general sensation to the Auricle, Skin of temple and lateral scalp?

Auriculotemporal nerve