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NLM2 Anatomy > Cranial nerves > Flashcards

Cranial nerves Flashcards

1
Q

What is the 1st cranial nerve? + general function

A

Olfactory, smell

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2
Q

What is the 2nd cranial nerve? + general function

A

Optic, vision

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3
Q

What is the 3rd cranial nerve? + general function

A

Oculomotor, moves eyeball, pupil, constriction and lens accommodation

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4
Q

What is the 4th cranial nerve? + general function

A

Trochlear, moves eyeball inferiorly and laterally

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5
Q

What is the 5th cranial nerve? + general function

A

Opthalmic, maxillary, mandibular

Motor to muscles of mastication, sensory to face, nose and mouth

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6
Q

What is the 6th cranial nerve? + general function

A

Abducent, moves eyeball laterally

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7
Q

What is the 7th cranial nerve? + general function

A

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

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8
Q

What is the 8th cranial nerve? + general function

A

Vestibularcochlear, balance and hearing

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9
Q

What is the 9th cranial nerve? + general function

A

Glossopharyngeal

Motor to stylopharyngeas, sensory to tongue and pharynx

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10
Q

What is the 10th cranial nerve? + general function

A

Vagus, motor to palate, pharynx and larynx

sensory to pharynx, larynx

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11
Q

What is the 11th cranial nerve? + general function

A

Spinal accessory, movement of head and shoulder

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12
Q

What is the 12th cranial nerve? + general function

A

Hypoglossal, motor to tongue muscles

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13
Q

Which cranial nerves are just sensory?

A

I- Olfactory
II- Optic
VIII- Vestibulocochlear

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14
Q

Which cranial nerves are just motor?

A 
III- Oculomotor
IV- Trochlear
VI- Abducent
XI- Spinal accessory
XII- Hypoglossal
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15
Q

Which cranial nerves have their nucleus in pons?

A

Motor of V, VI, VII

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16
Q

Which cranial nerves have their nucleus in medulla?

A

IX, X and XII

17
Q

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

A

Sternocleidomastoid and trapezius

18
Q

What cranial nerves exit via the foramen magnum?

A

Spinal accessory (CN XI)

19
Q

What cranial nerves exit through the jugular foramen?

A

CN IX, X and XI

20
Q

Which cranial nerves pass through the superior orbital fissures?

A

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

21
Q

What cranial nerves pass through the optic canal?

A

Optic (CN II)

22
Q

What cranial nerve passes through holes in the cribiform plate?

A

Olfactory (CN I)

23
Q

Which cranial nerve passes through the foramen rotundum?

A

V2 (maxillary)

24
Q

Which cranial nerve passes through the foramen ovale?

A

Mandibular (V3)

25
Q

What cranial nerves pass through the internal auditory meatus?

A

Facial (VII) and vestibulocochlear (VIII)

26
Q

What does the opthalmic nerve split into?

A

Frontal
Lacrimal
Nasocilliary

27
Q

What does the lacrimal nerve supply?

A

Innervation to lateral upper eyelid and conjunctiva

Also carries PNS neurones from pterygopalatine ganglion to lacrimal gland

28
Q

What reflex tests the lacrimal nerve?

A

Blink reflex

29
Q

What does the frontal nerve supply?

A

Skin of forehead and scalp

30
Q

What does the nasociliary nerve supply?

A

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
Q

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

A

Facial and vestibulocochlear

32
Q

Which nerves emerge from between pons and the pyramid?

A

Abducent

33
Q

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

A

Trochlear

34
Q

What nerve will be affected by a pituitary tumour?

A

Optic nerve-> visual field defects

NLM2 Anatomy (16 decks)

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