Cranial nerves Flashcards Preview

NLM2 Anatomy > Cranial nerves > Flashcards

Flashcards in Cranial nerves Deck (34):
1

What is the 1st cranial nerve? + general function

Olfactory, smell

2

What is the 2nd cranial nerve? + general function

Optic, vision

3

What is the 3rd cranial nerve? + general function

Oculomotor, moves eyeball, pupil, constriction and lens accommodation

4

What is the 4th cranial nerve? + general function

Trochlear, moves eyeball inferiorly and laterally

5

What is the 5th cranial nerve? + general function

Opthalmic, maxillary, mandibular
Motor to muscles of mastication, sensory to face, nose and mouth

6

What is the 6th cranial nerve? + general function

Abducent, moves eyeball laterally

7

What is the 7th cranial nerve? + general function

Facial nervus intermedius, motor to facial muscles, sense of taste

8

What is the 8th cranial nerve? + general function

Vestibularcochlear, balance and hearing

9

What is the 9th cranial nerve? + general function

Glossopharyngeal
Motor to stylopharyngeas, sensory to tongue and pharynx

10

What is the 10th cranial nerve? + general function

Vagus, motor to palate, pharynx and larynx
sensory to pharynx, larynx

11

What is the 11th cranial nerve? + general function

Spinal accessory, movement of head and shoulder

12

What is the 12th cranial nerve? + general function

Hypoglossal, motor to tongue muscles

13

Which cranial nerves are just sensory?

I- Olfactory
II- Optic
VIII- Vestibulocochlear

14

Which cranial nerves are just motor?

III- Oculomotor
IV- Trochlear
VI- Abducent
XI- Spinal accessory
XII- Hypoglossal

15

Which cranial nerves have their nucleus in pons?

Motor of V, VI, VII

16

Which cranial nerves have their nucleus in medulla?

IX, X and XII

17

What muscles does the spinal accessory (XI) nerve control?

Sternocleidomastoid and trapezius

18

What cranial nerves exit via the foramen magnum?

Spinal accessory (CN XI)

19

What cranial nerves exit through the jugular foramen?

CN IX, X and XI

20

Which cranial nerves pass through the superior orbital fissures?

Oculomotor (CNIII), trochlear (CN IV), abducent (CN VI) and ophthalmic (V1)

21

What cranial nerves pass through the optic canal?

Optic (CN II)

22

What cranial nerve passes through holes in the cribiform plate?

Olfactory (CN I)

23

Which cranial nerve passes through the foramen rotundum?

V2 (maxillary)

24

Which cranial nerve passes through the foramen ovale?

Mandibular (V3)

25

What cranial nerves pass through the internal auditory meatus?

Facial (VII) and vestibulocochlear (VIII)

26

What does the opthalmic nerve split into?

Frontal
Lacrimal
Nasocilliary

27

What does the lacrimal nerve supply?

Innervation to lateral upper eyelid and conjunctiva
Also carries PNS neurones from pterygopalatine ganglion to lacrimal gland

28

What reflex tests the lacrimal nerve?

Blink reflex

29

What does the frontal nerve supply?

Skin of forehead and scalp

30

What does the nasociliary nerve supply?

Two branches-
Anterior ethmoidal supplies ethmoidal air sinuses
Infratrochlear supplies skin and mucous membranes of nose and conjunctiva
Also gives off ciliary nerves to eyeball

31

Which nerves arise from the lateral angle between pons and medulla?

Facial and vestibulocochlear

32

Which nerves emerge from between pons and the pyramid?

Abducent

33

Which nerve is the only one that arises from the dorsal surface of the brainstem?

Trochlear

34

What nerve will be affected by a pituitary tumour?

Optic nerve-> visual field defects