CN Nuclei Flashcards

1
Q

spinal cord ends at

A

l2

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2
Q

decorticate posturing

A

spastic paralysis with hyperflexion of the upper limbs

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3
Q

what is the only cn to cross the midline and exit posteriorly

A

trochlear

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4
Q

where is the hypoglossal nuclei

A

medulla in midlien

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5
Q

lumbar plexus

A

l1-4

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6
Q

which cn have nucleus ambiguous

A

9 and 10

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7
Q

what can cause decorticate posturing

A

cva in IC - cst affected

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8
Q

cerebellar cortex

A

molecular o purkinjue m granule I

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9
Q

what are the 4 components of the vagus nerve

A

solitary - taste nucleus ambiguous - motor dorsal motor nucleus - parasympathetic spinal trigeminal nucleus

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10
Q

where are the segmental arteries

A

off intercostals

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11
Q

which nuclei collects info of pain from dura

A

spinal trigeminal nuclei of cn 10

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12
Q

what is the function of the retic formaton

A

cn reflexes pain respiration sleep activate the cerebral cortex

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13
Q

what is decerebrate posturing

A

rigidity and paraplegia in extensoin

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14
Q

cn4 nuclei of origin

A

inferior colliculus

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15
Q

what can cause decerebrate posturing

A

vestibulospinal tract

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16
Q

what nerve supplies the special sensory to the anterior 2/3 of tongue

A

chorda tympani of facial

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17
Q

what muslces does the hypoglossal supply?

A

genioglossus hypoglossus styloglossus intrinsic tongue muscles

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18
Q

cn6 nuclei of origin

A

pons

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19
Q

which cn have the s/I salivary nuclei

A

cn 7 9

20
Q

sensory to epiglottis

A

10

21
Q

what is the only sensory modality not to synapse in the thalamus

A

cn 1

22
Q

describe the facial nuclei

A

split into 3 components all of which are in the pons

23
Q

whata re the main trigeminal sensory nuclei

A

mesencephalic nucleus - proprioceptive info from chewing pontine trigeminal nucleus - discriminative touch and vibration spinal nucleus - pain and temperature ventral trigeminothalamic tract - bilateral rep of touch and vibration

24
Q

what is the only site in the cns where the primary afferent neurons are in the cns

A

mesencephalic nucleus

25
Q

cervical plexus

A

c1-4

26
Q

ependymal cells

A

ciliated columnar

27
Q

layers of scalp

A

skin connective tissue aponeurosis loose connective tissue periosteum

28
Q

cn3 nuclei of origin

A

superior colliculus

29
Q

what are the 4 componenets of the glossopharyngeal

A

solitary nucleus - taste spinal trigeminal inferior salivatory nucleus - parasympathetic nucleus ambiguous - stylopharyngeus

30
Q

brachial plexus

A

c5-t1

31
Q

which cn have the solitary nucleus

A

7 9 10

32
Q

what are two nuclei involved with the facial nerve

A

solitary and salivary nuclei

33
Q

which nerve supplies sensory to anterior 2/3 of tongue

A

v3 (lingual nerve)

34
Q

which nerve supplies sensory to posterior 2/3 pf tongue

A

9

35
Q

right recurrent laryngeal loops under

A

right subclavian

36
Q

what is immediately at the pons

A

the floor of the 4th ventricle

37
Q

carotid sinus / body nerve supply

A

9

38
Q

sacral plexus

A

l5-s4

39
Q

which fibres loop around the abducens nucleus

A

facial

40
Q

left recurrent largyngeal loops inder

A

arch of aorta

41
Q

subarahcinoid space ends at

A

s2

42
Q

aortic arch and viscera supplied by

A

10

43
Q

which nuceli is for parasympathetic efferents of 3 7 9 10

A

hypothalamic nuclei

44
Q

where are all the glossopharyngeal nuclei located

A

upper medulla

45
Q

where are the racidualr aretries

A

roots