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PNS exam 1 > Unit 1: Review > Flashcards

Unit 1: Review Flashcards

1
Q

CNS parts

A

Brain

Cord

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2
Q

PNS parts

A 
Cranial nerves (12 pair)
Spinal nerves (31 pair)
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3
Q

cranial nerve types with nuclei of origin

A

motor

mixed

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4
Q

cranial nerve types with nucleus of termination

A

sensory

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5
Q

spinal nerves are attached to the spinal cord via

A

ventral & dorsal ROOTLETS

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6
Q

what is contained in the dorsal root of a spinal nerve

A

dorsal root ganglion

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7
Q

each spinal nerve splits into

A

ventral & dorsal primary rami

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8
Q

functional subdivisions of the nervous system

A 
somatic
autonomic (visceral)
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9
Q

two nerve types found in somatic NS

A

sensory (afferent)

motor (efferent)

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10
Q

two divisions of autonomic NS

A

sympathetic

parasympathetic

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11
Q

describe the TWO efferent neurons used to reach the target in the sympathetic division of the ANS

A

preganglionic: SHORT, rel. ACH
postganglionic: LONG, rel. NE

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12
Q

which splanchnic nerves are found in the sympathetic NS

A

sacral

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13
Q

describe the TWO efferent neurons used to reach target in parasympathetic division of ANS

A

preganglionic: LONG, rel ACH
postganglionic: SHORT, rel ACH

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14
Q

which splanchnic nerves are found in the parasympathetic NS

A

pelvic

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15
Q

in the sympathetic division, neurons synapse close to the ____, where in the parasympathetic division they synapse close to the ____

A

CNS

target

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16
Q

CN I (name & type)

A

olfactory

special sensory

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17
Q

CN II

A

optic

special sensory

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18
Q

CN III

A

oculomotor
motor
-parasympathetic & somatic

19
Q

CN IV

A

trochlear
somatic motor
-superior oblique

20
Q

CN V

A

trigeminal
mixed
-somatic motor & sensory
-muscles of mastication

21
Q

great sensory nerve of face, is the largest

A

trigeminal

22
Q

CN VI

A

abducens
somatic motor
lateral rectus

23
Q

CN VII

A

facial
mixed
-motor: somatic, parasympathetic
-sensory: somatic, special

24
Q

facial nerve (CN VII) carries taste info from where

A

anterior 2/3 of tongue

25
Q

facial expression muscles (2) supplied by facial nerve, and 2 glands

A

stylohyoid
stapedius
lacrimal gland
salivary gland

26
Q

CN VIII

A

vestibulocochlear
special sensory
-cochlea & vestibule
-hearing & equilibrium

27
Q

CN IX

A

glossopharyngeal
mixed
-motor: somatic & parasympathetic
-sensory: somatic & special

28
Q

taste info carried by glossopharyngeal nerve is from where

A

posterior 1/3 of the tongue

29
Q

CN X

A 
vagus
mixed
-motor: somatic & *parasympathetic*
-sensory: somatic
-longest CN
30
Q

CN XI

A

accessory
motor
-cranial part: pharynx, larynx, palate
-spinal part: traps, SCM

31
Q

CN XII

A

hypoglossal
motor
-ex/intrinsic tongue muscles

32
Q

two neurons involved in somatic motor pathway

A

upper motor neuron

lower motor neuron

33
Q

UMN that initiates voluntary movement

A

pyramidal

34
Q

location of pyramidal cell body

A

cerebral cortex

35
Q

UMN that works to coordinate movement, but does not initiate

A

extrapyramidal

36
Q

location of extrapyramidal cell body

A

brainstem

37
Q

after crossing in the pyramids, where do most UMN descend

A

lateral corticospinal tract

38
Q

location that UMN synapse in gray matter

A

anterior horn (rexed lamina VII)

39
Q

LMN pathways extend into ___

A

PNS

40
Q

before being carried to supply somatic muscles, LMN exit the cord via

A

anterior rootlets

41
Q

describe the three neuron somatic sensory pathway (from receptor to cortex)

A

1) receptor-> CNS
2) CNS-> opposite thalamus
3) thalamus-> cortex

42
Q

PRIMARY sensory neuron CB are located in ___ & convey info from a receptor to ____

A

dorsal root ganglion

CNS

43
Q

SECONDARY sensory neurons ___ & convey info to the ____

A

decussate (cross over)

thalamus (on opposite side)

44
Q

TERTIARY sensory neurons relay info to ____, in order to integrate sensory info

A

cerebral cortex

PNS exam 1 (7 decks)

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