Cranial nerves

Question 1

how many cranial nerves are there/

Answer 1

12

Question 2

what do cranial nerves supply?

Answer 2

they supply special senses e.g. taste

Question 3

CNI (first cranial nerve) =

Answer 3

Olfactory nerve = special sense, carries information related to smell

Question 4

CNII (2nd) =

Answer 4

optic nerve - vision

Question 5

CNIII (3rd) =

Answer 5

Oculomotor nerve - somatic division controls movement of eye, autonomic division is motor to pupil contrition

Question 6

CNIV (4th) =

Answer 6

Trochlear - motor that moves muscles in the eye

Question 7

CNV (5th) =

Answer 7

Trigeminal nerve - touch on the face (dermatomes), muscles of mastication (myotomes)

Question 8

CNVI (6th) =

Answer 8

Abducent - somatic muscle of the eye

Question 9

CNVII (7th) =

Answer 9

Facial Nerve - taste from anterior tongue and palate

Question 10

CNVIII (8th) =

Answer 10

Vestibulocochlear nerve - hearing

Question 11

CNIX (9th) =

Answer 11

glossopharyngeal nerve - taste from posterior tongue

Question 12

CNX (10th) =

Answer 12

vagus nerve - called the wandering nerve as it supplies structures beyond the head

Question 13

CNXI (11th) =

Answer 13

accessory nerve - motor to two big muscles in the neck

Question 14

CNXII (12th) =

Answer 14

motor to the muscles of the tongue