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CADE Block 5 > Cranial Nerve Intro > Flashcards

Cranial Nerve Intro Flashcards

1
Q

CN I

A

Olfactory Nerve

Smell

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2
Q

CN II

A

Optic Nerve

Vision

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3
Q

CN III

A

Oculomotor Nerve

–Most extra-ocular muscles that moves the eyes

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4
Q

CN IV

A

Trochlear Nerve

–Superior oblique extraocular muscle

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5
Q

CN V

A

Trigeminal Nerve

  • Muscles of mastication for chewing, etc
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6
Q

CN VI

A

Abducens Nerve

–Lateral rectus extraocular muscle

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7
Q

CN VII

A

Facial Nerve

–Muscles of facial expression, etc.

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8
Q

CN VIII

A

Vestibulocochlear Nerve

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9
Q

CN IX

A

Glossopharyngeal Nerve

–Muscles of pharynx and larynx

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10
Q

CN X

A

Vagus Nerve

–Muscles of pharynx and larynx

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11
Q

CN XI

A

Spinal Accessory Nerve

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12
Q

CN XII

A

Hypoglossal Nerve

–Most muscles of tongue

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13
Q

CN V1

A

Ophthalmic Nerve

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14
Q

CN V2

A

Maxillary Nerve

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15
Q

CN V3

A

Mandibular Nerve

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16
Q

Somatic motor nerves innervate skeletal muscle derived from:

A

somites

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17
Q

Branchial motor innervates skeletal muscles derived from:

A

branchial/pharyngeal arches

18
Q

COPS Ganglia

A

Ciliary (III)

Optic (IX)

Pterygopalatine (VII)

Submandibular (VII)

19
Q

Preganglionic parasympathetic fibers reach their target ganglia in the head via branches of …

A

CN III, VII or IX

20
Q

Postganglionic parasympathetic fibers reach their end organs by

A

Branches of CN V

21
Q

Preganglionic sympathetic origination and ending

A

•originate in upper thoracic levels (T1-T4) of the intermediolateral cell column

Ascend and terminate in superior cervical ganglion

22
Q

Sensory Cranial Nerves

A

Olfactory nerve (CN I)

Optic nerve (CN II)

Vestibulocochlear nerve (CN VIII)

23
Q

The optic nerve is formed by axons of

A

Ganglion cells of the retina.

24
Q

Vestibulocochlear nerve path

A
  • It exits the skull with the facial nerve through the internal acoustic meatus.
  • Once in the temporal bone it divides into two parts:

–the vestibular n. (balance)

–the cochlear n. (hearing).

25
Q

Motor Cranial Nerves

A

Oculomotor nerve (CN III)

Trochlear nerve (CN IV)

Abducens nerve (CN VI)

Spinal accessory nerve (CN XI)

Hypoglossal nerve (CN XII)

26
Q

Mixed Cranial Nerves

A

Trigeminal nerve (CN V)

Facial nerve (CN VII)

Glossopharyngeal nerve (CN IX)

Vagus nerve (CN X)

27
Q

5 bones of skull base

A
28
Q

CN III parasympathetic nuclei and function

A

–CN III: accessory oculomotor nucleus (Edinger Westphal nucleus)

  • Supply smooth muscle of eye
29
Q

CN IV parasympathetoc nuclei and function

A

–CN VII: superior salivary nucleus

Supply lacrimal gland for tears, 2 salivary glands, glands of nose and palate

30
Q

CN IX parasympathetic nuclei and function

A

–CN IX: inferior salivary nucleus

•Supply parotid salivary gland

31
Q

CN X parasympathetic nuclei and function

A

–CN X: dorsal motor nucleus of vagus

•Supply smooth muscle and glands in thorax and abdomen

32
Q

vestibular and chochlear cell body locations

A
33
Q

Oculomotor nerve function, cell bodies, types of fiber

A
34
Q

Trochlear nerve function, cell body function, path

A
35
Q

Abducens nerve function, cell bodies, types of fiber

A
36
Q

Spinal accesory nerve nerve function, cell bodies, types of fiber

A

XI. Spinal accessory nerve

  • Supplying the trapezius and sternocleidomastoid
  • Arises from spinal accessory nucleus of the upper 5 segments of the spinal cord which ascend through the foramen magnum
  • Exit the cranial cavity via the jugular foramen.
37
Q

Hypoglossal nerve nerve function, cell bodies, types of fiber

A

XII.Hypoglossal nerve

  • Innervating all intrinsic and most extrinsic musculature
  • The cell bodies of origin for CN XII are located in the hypoglossal nucleus.
  • The hypoglossal nerve leaves the cranial cavity through the hypoglossal canal
  • It enters the neck and loops around the occipital artery to enter the lateral side of the tongue.
38
Q

Ophthalmic division fiber type, cell bodies, cranial cavity entrance

A
39
Q

Maxillary division fiber type, cell bodies, cranial cavity entrance

A
40
Q

Mandibular division fiber type, cell bodies, cranial cavity entrance

A

CADE Block 5 (12 decks)

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