Innervation of Face (week 2) Flashcards Preview

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

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

A

Motor Nucleus of VII (pons)

1
Q

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

A

Auricularis, Occipitalis and Suprahyoid

2
Q

Suprahyoid branch of the Facial nerve innervates what two muscles?

A

Stylohyoid and Posterior belly of the Digastric muscle

3
Q

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

A

Stylomastoid Foramen

4
Q

General Sensation for the face comes from what Cranial Nerve?

A

Trigeminal (CN V)

5
Q

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

A

Facial n. (CN VII)

6
Q

What are the three divisions of CN V?

A

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

7
Q

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

A

Trigeminal Ganglion

8
Q

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

A

In the Orbit

9
Q

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

A

Lacrimal Nerve, Frontal Nerve and Nasociliary Nerve

10
Q

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

A

Supraorbital nerve and Supratrochlear nerve

11
Q

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

A

External Nasal nerve

12
Q

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

A

Infratrochlear nerve

13
Q

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

A

Nasociliary nerve

14
Q

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

A

Infratrochlear nerve and Anterior ethmoid nerve

15
Q

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

A

Lateral Upper Eyelid

16
Q

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

A

Upper eyelid, Forehead and Scalp

17
Q

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

A

Cavernous Sinus

18
Q

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

A

Superior Orbital Fissure

19
Q

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

A

External nasal nerve

20
Q

Nerve branches from V2 in what space?

A

Pterygopalatine Fossa

21
Q

Two branches of V2 in Pterygopalatine Fossa

A

Zygomatic and Infraorbital nerve

22
Q

Zygomatic nerve enters what space after it branches off of V2

A

Inferior Orbital Fissue –> Orbit

23
Q

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

A

Zygomaticotemporal and Zygomaticofacial

24
Q

Zygomaticofacial Nerve supplies general sensation to what?

A

Skin over zygomatic arch

25
Q

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

A

Inferior Palpebral, Lateral nasal and Superior Labial

26
Q

Zygomaticotemporal nerve supplies general sensation to what?

A

Skin over anterior temple

27
Q

V3 branches into what two trunks in what space?

A

Anterior and Posterior trunks, Infratemporal Fossa

28
Q

What nerve comes off of the Anterior Trunk of V3

A

Buccal Nerve

29
Q

What nerve comes off of the Posterior Trunk of V3

A

Auriculotemporal nerve

30
Q

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

A

Buccal nerve

31
Q

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

A

Inferior Alveolar Nerve

32
Q

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

A

Mandibular Foramen

33
Q

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

A

The mental nerve

34
Q

Mental nerve supplies general sensation to what structures?

A

Chin
Lower Lip
Labial Gingiva

35
Q

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

A

Auriculotemporal nerve