Cranial Nerves - Hutch

Question 1

Which nerves innervate the eye muscles?

Answer 1

III, IV, VI

IV: Superior Oblique
VI: Lateral Rectus

Question 2

What muscles does CN XI (Spinal accessory nerve) Innervate?

Answer 2

• Trapezius

- SCM

Question 3

Which of the following Nerves does NOT have motor function

• Trigeminal
• Optic
• Hypoglossal
• Facial
• Abducens

Answer 3

Optic

Question 4

Taste buds and olfactory mucosa are considered to be Special ……… ……….. ?

Answer 4

Special visceral afferents

Question 5

Which of the following is not considered to be a TRUE cranial nerve

• Trigeminal
• Abducens
• Occulomotor
• Optic
• Vagus

Answer 5

Optic

Question 6

Where do V1, V2, V3 exit the skull?

Answer 6

V1: Superior orbital fissure
V2: Foramen rotundum
V3: Foramen ovale

Question 7

T or F: Olfactory N. is part of the diencephelon

Answer 7

FALSE

Part of telencephelon

Question 8

Where does the optic nerve enter the orbit?

Answer 8

Through the optic canal

Question 9

Which nerve is the ONLY nerve to emerge from the dorsal surface?

Answer 9

CN IV - Trochlear nerve

Question 10

Where does CN IV enter the orbit?

Answer 10

Via superior orbital fissure

Question 11

What sensation is V3 responsible for?

Answer 11

Anterior 2/3 of tongue - NOT Taste, just visceral sensation

Question 12

The Inferior Alveolar N. is a branch of which part of the Trigeminial N. and where does it enter skull?

Answer 12

Part of V3

via mandibular foramen

Although V3 branch enters via Foramen Ovale

Question 13

The Tentorial N. is a branch of which part of the Trigeminial N. and where does it enter skull?

Answer 13

V1

enters via superior orbital fissure

Question 14

I hit the side of my head and the internal acoustic meatus is injured. Which nerves would this injury affect?

Answer 14

VII - Facial

VIII - Vestibulocochlear

Question 15

Name all the branches of the Facial nerve

Answer 15

(Zanzibar To Buy Motor Cars)

• Zygomatic
• Temporal
• Buccal
• Mandibular
• Cervical

ALSO

• Posterior auricular n.
• Posterior digastric m.
• Stylohyoid m.

Question 16

Which of the following runs through the Jugular foramen?

• Glossopharyngeal
• Facial
• V3
• Abducens

Answer 16

Glossopharyngeal

Remember:
Glossopharyngeal, Vagus & Spinal accessory all run through jugular foramen

Question 17

Where does the greater petrosal nerve run thru, and what branch of V2 does it join?

Answer 17

Runs thru Pterygoid canal

joins zygomatic nerve

Question 18

The chorda tympani nerve innervates the ______ & ______ Glands

Answer 18

1. Submandibular
2. Sublingual

AND Anterior 2/3 taste of tongue

Question 19

What runs thru the Petrotympanic fissure?

And what does this nerve innervate?

Answer 19

Chorda tympani nerve

Innervates Sublingual & Submandibular Gland AND Taste of anterior 2/3 of tongue

Question 20

All of these are senses of what nerve?

Taste - Posterior 2/3
Posterior oral pharynx
Mucosa of middle ear
Tympanic membrane
Skin - external ear

Answer 20

CN IX - Glossopharyngeal N.

Question 21

What are the motor innervations of the Glossopharyngel Nerve?

Answer 21

Parotid Gland
Stylopharyngeus
Pharyngeal constrictors

Question 22

Which nerve is responsible for taste of the anterior 2/3 of tongue

Answer 22

Facial nerve - (Chorda tympani)