Cranial nerves

Question 1

What is the name for cranial nerve I?

Answer 1

Olfactory

Question 2

What are the components of cranial nerve I?

Answer 2

Special sensory - smell

Question 3

Where does cranial nerve I pass through the skull?

Answer 3

Through the cribriform plate

Question 4

What is the name for cranial nerve II?

Answer 4

Optic

Question 5

What are the components of cranial nerve II?

Answer 5

Special sensory - vision

Question 6

Where does cranial nerve II pass through the skull?

Answer 6

Optic canal

Question 7

What is the name for the position where the optic nerves meet and the medial portions swap side?

Answer 7

Optic chiasm

Question 8

What is the name for cranial nerve III?

Answer 8

Oculomotor

Question 9

What are the components of cranial nerve III?

Answer 9

Somatic motor for superior, medial, and inferior rectus, inferior oblique and levator palpebrae superioris
Parasympathetic innervation to constrictor pupillae and ciliary muscles

Question 10

Where does cranial nerve III pass through the skull?

Answer 10

Superior orbital fissure

Question 11

What is the name for cranial nerve IV?

Answer 11

Trochlear

Question 12

What are the components of cranial nerve IV?

Answer 12

Somatic motor for superior oblique

Question 13

Where does cranial nerve IV pass through the skull?

Answer 13

Superior orbital fissure

Question 14

What is the name for cranial nerve VI?

Answer 14

Abducent

Question 15

What are the components of cranial nerve VI?

Answer 15

Somatic motor for lateral rectus

Question 16

Where does cranial nerve VI pass through the skull?

Answer 16

Superior orbital fissure

Question 17

What is the name of cranial nerve V?

Answer 17

Trigeminal

Question 18

What are the three main branches of cranial nerve V called?

Answer 18

Opthalmic, maxillary, mandibular divisions

Question 19

What are the components of cranial nerve V1?

Answer 19

General sensory for cornea, forehead, scalp, eyelids, nose mucosa of nasal cavity and sinuses

Question 20

What are the components of cranial nerve V2?

Answer 20

General sensory for face over maxilla, maxillary teeth, TMJ, mucosa of nosa, maxillary sinuses and palate

Question 21

What are the components of cranial nerve V3?

Answer 21

General sensory for face over mandible, mandibular teeth, TMJ, mucosa of the mouth and anterior 2/3 of tongue
Somatic motor for muscles of mastication, anterior belly of the digastric, tensor veli palatinin and tensor tympani

Question 22

Where does cranial nerve V1 pass through the skull?

Answer 22

Superior orbital fissure

Question 23

Where does cranial nerve V2 pass through the skull?

Answer 23

Foramen rotundum

Question 24

Where does cranial nerve V3 pass through the skull?

Answer 24

Foramen ovale

Question 25

What is the name for cranial nerve VII?

Answer 25

Facial

Question 26

What are the components of cranial nerve VII?

Answer 26

Somatic motor for muscles of facial expression and scalp, stapedius of middle ear and posterior belly of digastric muscle
Parasympathetic innervation of submandibular & sublingual salivary glands, lacrimal glands and glands of nose and palate
Special sensory - taste from anterior 2/3 of tongue and soft palate
General sensory for external acoustic meatus

Question 27

Where does cranial nerve VII pass through the skull?

Answer 27

Exits via the internal acoustic meatus, giving off chorda tympani to the middle ear then exits via the stylomastoid foramen

Question 28

What is the name for cranial nerve VIII?

Answer 28

Vestibulocochlear

Question 29

What are the components of cranial nerve VIII?

Answer 29

Special sensory for vestibular sensation from semicircular ducts, utricle and saccule
Special sensory hearing from cochlea