Cranial Nerves Flashcards

1
Q

Which cranial nerves carry parasympathetic fibres?

A

CN III, VII, IX, X

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2
Q

Mnemonic for CN functions?

A

Some Say Marry Money But My Brother Says Big Brains Matter Most

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3
Q

CN I

A

Olfactory

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4
Q

CN II

A

Optic

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5
Q

CN III

A

Oculomotor

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6
Q

CN IV

A

Trochlear

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7
Q

CN V

A

Trigeminal

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8
Q

CN VI

A

Abducens

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9
Q

CN VII

A

Facial

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10
Q

CN VIII

A

Vestibulocochlear

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11
Q

CN IX

A

Glossopharyngeal

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12
Q

CN X

A

Vagus

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13
Q

CN XI

A

Spinal Accessory

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14
Q

CN XII

A

Hypoglossal

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15
Q

Which cranial nerves are sensory only?

A

CN I, II, VIII

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16
Q

Where does the olfactory nerve synapse?

A

Olfactory bulb

17
Q

How do the oculomotor and trochlear nerves get to the superior orbital fissure?

A

Along lateral wall of cavernous sinus

18
Q

Which cranial nerve has the longest route and is easily disrupted in trauma?

A

Trochlear

19
Q

How does the abducens nerve get to the superior orbital fissure?

A

Through the centre of the cavernous sinus

20
Q

How does the spinal accessory nerve get to the jugular foramen?

A

Ascends through the foramen magnum

21
Q

What does CN XI supply?

A

SCM and trapezius

22
Q

How does the hypoglossal nerve reach the tongue muscles?

A

Descends lateral to carotid sheath

23
Q

Function of V1?

A

Sensory to upper eyelid, conjunctiva, orbit + bridge of nose

24
Q

Function of V2?

A

Sensory to lower eyelid, maxilla, nose ala, upper lip

25
Q

Function of V3?

A

Sensory AND motor to mandible, TMJ, 2/3rd tongue + bucca mucosa
Motor to mastication muscles, tensor veli palatini + tensor tympani

26
Q

Motor functions of VII?

A

Muscles of facial expression, stapedius

27
Q

Special sensory and parasympathetic functions of VII?

A

Parasympathetic- submandibular gland

Taste to anterior 2/3rd of tongue

28
Q

Motor function of IX?

A

Stylopharyngeus

29
Q

Special sensory function of IX?

A

Taste to posterior 1/3 of tonuge

30
Q

General sensory functions of IX?

A

Oropharynx, nasopharynx, laryngopharynx, palatine tonsil, eustachian tube, middle ear

31
Q

Parasympathetic function of IX?

A

Parotid gland