Cranial Nerves Flashcards

1
Q

CN I

A

Olfactory n.

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2
Q

CN II

A

Optic n.

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3
Q

CN III

A

Oculomotor n.

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4
Q

CN IV

A

Trochlear n.

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5
Q

CN V

A

Trigeminal n.

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6
Q

CN VI

A

Abducens n.

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7
Q

CN VII

A

Facial n.

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8
Q

CN VIII

A

Vestibulocochlear n.

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9
Q

CN IX

A

Glossopharyngeal n.

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10
Q

CN X

A

Vagus n.

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11
Q

CN XI

A

Accessory n.

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12
Q

CN XII

A

Hypoglossal n.

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13
Q

Pathway for CN I

A

Olfactory n. -> bulb -> tract -> cortex

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14
Q

Pathway for CN II

A

Optic n. -> chiasm -> tract -> nucleus of thalamus -> projection axons -> cortex

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15
Q

Functions of CN III

A

Motor: extrinsic eye muscles
Parasympathetic: intrinsic eye muscles

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16
Q

Function of CN IV

A

Extrinsic eye muscles

17
Q

Functions of CN V

A

Sensory: info from face
Motor: muscles of mastication

18
Q

Function of CN VI

A

Extrinsic eye muscles

19
Q

Functions of CN VII

A

Sensory: taste
Motor: facial muscles
Parasympathetic: secretion of lacrimal & salivary glands

20
Q

Functions of CN VIII

A

Sensory
Vestibular branch: equilibrium
Cochlear: hearing

21
Q

Functions CN IX

A

Sensory: taste
Motor: pharynx muscles
Parasympathetic: secretion of Salvatore glands

22
Q

Function of CN X

A

Sensory: structures inferior to pharynx
Motor: larynx & pharynx muscles
Parasympathetic: visceral smooth muscle, cardiac m., abdominal organs

23
Q

Function of CN XI

A

Trapezius & sternocleidomastoid muscles

24
Q

Function of CN XII

A

Intrinsic & extrinsic tongue muscles