cranial nerves Flashcards

1
Q

what nervous system are the cranial nerves part of

A

peripheral

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2
Q

how many pairs of cranial nerves do we have

A

12

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3
Q

through what do cranial nerves pass in the cranial cavity

A
  • foramina

- fissures

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4
Q

all nerves except one, the …. nerve (..), originate from the brain

A

accessory (XI)

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5
Q

special sensory components are associated with (5)

A
  • hearing
  • seeing
  • smelling
  • balancing
  • tasting
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6
Q

special motor components include those that innervate skeletal muscles derived embryologically from … … and not from …

A

pharyngeal arches, somites

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7
Q

how many paryngeal arches are designated in human embryology

A

6

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8
Q

which pharyngeal arch never develops

A

5th

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9
Q

which nerve inervates muscles derived from the first arch

A

trigeminal nerve [V3]

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10
Q

which nerve inervates muscles derived from the second arch

A

facial nerve [VII]

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11
Q

which nerve inervates muscles derived from the third arch

A

glossopharyngeal nerve [IX]

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12
Q

which nerve inervates muscles derived from the fourth arch

A

superior laryngeal branch of the vagus nerve [X]

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13
Q

which nerve inervates muscles derived from the sixth arch

A

recurrent laryngeal branch of the vagus nerve [X]

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14
Q

which nerve inervates muscles derived from the posterior arches

A

accessory nerve [XI]

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15
Q

which two types of fibers does the trigeminal nerve [V] carry?

A
  • general somatic afferent (GSA)

- branchial efferent (BE)

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16
Q

the trigeminal nerve exits from the ….. surface of the … as a large … root and a smal … root

A

anterolateral, pons, sensory, motor

17
Q

in the middle cranial fossa the sensory root expands into the … …

A

trigeminal ganglion

18
Q

the three terminal divisions of the trigeminal nerve in descending order are

A
  • ophthalmic nerve
  • maxillary “
  • mandibular “