Cranial Nerves

Question 1

Name CN I

Answer 1

Olfactory

Question 2

Name CN II

Answer 2

Optic

Question 3

Name CN III

Answer 3

Occulomotor

Question 4

Name CN IV

Answer 4

Trochlear

Question 5

Name CN V

Answer 5

Trigeminal

Question 6

Name CN VI

Answer 6

Abducens

Question 7

Name CN VII

Answer 7

Facial

Question 8

Name CN VIII

Answer 8

Vestibulocochlear

Question 9

Name CN IX

Answer 9

Glossopharyngeal

Question 10

Name CN X

Answer 10

Vagus

Question 11

Name CN XI

Answer 11

Accesesory

Question 12

Name CN XII

Answer 12

Hypoglossal

Question 13

What is the function of CNI ?

Answer 13

Smell

Question 14

What is the function of CNII ?

Answer 14

Vision

Question 15

What is the function of CNIII?

Answer 15

Eye movement via innervation of extraoccular muscles (SR,MR,IR,IO) and eyelid (LPS), constriction of pupils and ciliary muscles

Question 16

What is the function of CNIV?

Answer 16

Eye movement

Question 17

What is the function of CNV?

Answer 17

Sensation from face, mouth, muscles of mastication

Question 18

What does CNV1 innervate?

Answer 18

Cornea, scalp, eyelids and nasal mucosa

Question 19

What does CNV2 innervate?

Answer 19

Face, maxilla, TMJ, Maxillary Sinus

Question 20

What does CNV3 innervate?

Answer 20

Muscles of mastication, Digastric Muscles, Palatine and Tensor Tympani

Question 21

What is the function of CNVI?

Answer 21

Eye movement (LR)

Question 22

What is the visceral motor function of CNVII?

Answer 22

Parasympathetic innervation of submandibular and sublingual salivary glands, lacrimal glands and glands of nose and palate

Question 23

What is the somatic motor function of the CNVII?

Answer 23

Innervation to the muscles of facial expression, scalp, stapes of middle ear, part of the digastric muscle

Question 24

What is the special sensory function of the CNVII?

Answer 24

Taste from anterior 2/3 of tongue and soft palate

Question 25

What is the function of the CNVIII?

Answer 25

Hearing and vestibular sensation from semicircular ducts, utricle and saccule - gives sense of position and movement

Question 26

What is the sensory function of CNIX?

Answer 26

Taste of posterior 1/3 of tongue, cutaneous sensation from middle ear and post. oral cavity

Question 27

What is the motor functions of CNIX?

Answer 27

Parasympathetic innervation of parotid gland and swallowing via the stylopharyngeus

Question 28

What are the sensory functions of CNX?

Answer 28

Taste (epiglottis and soft palate), sensation from auricle and External Acoustic Meatus, innervation to the pharynx, larynx, trachea, bronchi, oesophagus, stomach, heart and intestine

Question 29

What are the motor functions of the CNX?

Answer 29

Parasympathetic innervation of muscles in bronchi, gut and heart. Innervation of pharynx, larynx, palate and oesophagus

Question 30

What are the functions of CNXI?

Answer 30

Innervation of the striated muscles of soft palate, pharynx, larynx, SCM and trapezius

Question 31

What are the functions of CNXII?

Answer 31

Innervate the muscles of the tongue