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PNS Quiz 1 > Unit I > Flashcards

Unit I Flashcards

1
Q

How many pairs of cranial nerves attach directly to the brain?

A

12

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2
Q

cranial nerves exit the skull via

A

patent openings

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3
Q

How many pairs of spinal nerves are there?

A

31 mixed pairs

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4
Q

spinal nerves attach to spinal cord by

A

ventral and dorsal rootlets

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5
Q

what makes up the PNS?

A

cranial nerves and spinal nerves

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6
Q

What makes up the CNS?

A

brain and spinal cord

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7
Q

functional subdivisions of PNS

A

somatic and visceral (autonomic)

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8
Q

divisions of the visceral (autonomic) nervous system

A

sympathetic and parasympathetic

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9
Q

parasympathetic division contains cranial nerves….. and sacral nerves….

A

cranial nerves III, VII, IX, X and sacral nerves 2, 3, 4

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10
Q

preganglionic sympathetic neurons release

A

ACH

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11
Q

postganglionic sympathetic neurons release

A

NE

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12
Q

preganglionic parasympathetic neurons release

A

ACH

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13
Q

postganglionic parasympathetic neurons release

A

ACH

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14
Q

sympathetic division is known as

A

adrenergic

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15
Q

parasympathetic division is knonw as

A

cholinergic

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16
Q

Skull opening CN I

A

cribriform plate of ethmoid bone

17
Q

Skull opening CN II

A

optic canal

18
Q

skull opening CN III

A

superior orbital fissure

19
Q

skull opening CN IV

A

superior orbital fissure

20
Q

skull opening CN V1

A

superior orbital fissure

21
Q

skull opening CN V2

A

foramen rotundum

22
Q

skull opening CN V3

A

foramen ovale

23
Q

skull opening CN VI

A

superior orbital fissure

24
Q

skull opening VII

A

internal acoustic meatus

25
Q

skull opening VIII

A

internal acoustic meatus

26
Q

skull opening IX

A

jugular foramen

27
Q

skull opening X

A

jugular foramen

28
Q

skull opening XI

A

jugular foramen

29
Q

skull opening XII

A

hypoglossal canal

30
Q

pyramidal neurons

A

initiates movements (cerebral cortex)

31
Q

extrapyramidal neurons

A

coordinates movements (brainstem)

32
Q

where do UMN synapse?

A

anterior horn of the gray matter (rexed lamina VII)

33
Q

LMN exits the cord via

A

anterior (ventral) rootlets

34
Q

somatic sensory input from the trunk and extremities uses a

A

three neuron pathway to get from receptor to the cerebral cortex

35
Q

three neurons in the somatic sensory pathway travel from….

A

spinal cord, thalamus, cerebral cortex

PNS Quiz 1 (3 decks)

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