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Neuroscience > neuro terms and functions > Flashcards

neuro terms and functions Flashcards

1
Q

association fiber fxn

A

interconnects cortical areas within the same hemisphere

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2
Q

arcuate fiber fxn

A

interconnect gyri within a lobe

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3
Q

longitudinal fasiculi fxn

A

interconnect the frontal lobe with other cerebral lobes

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4
Q

commisural fiber fxn

A

interconnect corresponding lobes of different hemispheres

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5
Q

projection fiber fxn

A

connect cerebral cortex to diencephalong, brain stem, cbellum, and spinal cord

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6
Q

amygdaloid body fxn

A

component of limbic sys

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7
Q

claustrum fxn

A

role of subconsious processing of visial info

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8
Q

anterior group of thalamus

A

part of the limbic system

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9
Q

medial group of thalamus

A

integrates sensory info for projection to frontal lobes

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10
Q

ventral group of thalamus

A

projects sensory info to primary sensory cortex, cerebellum, and basal gang.

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11
Q

pulvinar portion of thalamus

A

posterior; integrates sensory info for projection to association areas of cerebral cortex

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12
Q

superior colliculi

A

integrates visual info with other info; can do reflex responses to visual stimuli

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13
Q

inferior colliculi

A

relays auditory info to medial geniculate nucli; can do reflex response to auditory stimuli

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14
Q

red nuclei

A

involuntary control of background muscle tone and limb position

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15
Q

substantia nigra

A

regulates pain activty in basal nuclei

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16
Q

reticular formation

A

automatic processing of incoming sensations and outgoing motor commands; can respond to stimuli; helps maintain consciousness

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17
Q

cerebral peduncles

A

connect primary motor cortex with motor neurons in brain and spinal cord; carries ascending sensory to thalamus

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18
Q

nucleus gracilis/cuneatus

A

relays somatic sensory info to the ventral posterior nuclei of thalamus

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19
Q

olivary nuclei

A

relays info from spinal cord, red nucleus, midbrain centers and cerebral cortex to the vermis of the cerebellum

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20
Q

two pathways in posterior column

A

fasiculus gracilis, cuneatus

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21
Q

path of fasciculus gracilis

A

1) DRG, ascend in fasciculus
2) nucleus gracilis, cross over to other side medial lemniscus and ascend
3) ventral posterolateral nucleus of thalamus to cortex on contralateral side of stimulus

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22
Q

path of fasciculus cuneatus

A

1) DRG, ascend in fasciculus
2) nucleus cuneatus, cross over to other side medial lemniscus and ascend
3) ventral posterolateral nucleus of thalamus to cortex on contralateral side of stimulus

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23
Q

two pathways in posterior column carry what info

A

proprioception, fine touch, pressure, vibration

24
Q

path of lateral spinothalamic tract

A

1) DRG, to dorsal root
2) posterior gray horn, cross through ventral commisure to lateral spinothalamic tract and ascend
3) ventral posterolateral nucleus of thalamus to primary cortex on contralateral side of stimulus

25
Q

lateral spinothalamic tract carries

A

pain temperature

26
Q

path of anterior spinothalamic tract

A

1) DRG, to dorsal root
2) posterior gray horn, cross through ventral commisure to anterior spinothalamic tract and ascend
3) ventral posterolateral nucleus of thalamus to primary cortex on contralateral side of stimulus

27
Q

anterior spinothalamic tract carries. lateral?

A

crude touch and pressure sensations. lateral spinothalamic carries pain, temperature

28
Q

posterior spinocerebellar tract path

A

1) DRG, to dorsal root
2) posterior gray horn, enter posterior spinocerebellar tract on same side and go to the cerebellar cortex
DO NOT CROSS

29
Q

anterior spinocerebellar tract path

A

1) DRG to dorsal root
2) posterior gray horn and cross before entering the anterior spinocerebellar tract to go to the cerebellar cortex.
THESE CROSS AGAIN within the cerebellum

30
Q

spinocerebellar tracts carry

A

proprioception of muscles, tendons, and joints

31
Q

corticobulbar tract UMN

A

primary motor cortex

32
Q

corticobulbar tract destination

A

LMN of cranial nerve nuclei in brainstem

33
Q

action of corticobulbar tract

A

conscious motor control of muscles for eye, face, tongue, neck, and superficial back muscles

34
Q

lateral corticospinal destination

A

LMN of anterior gray horns in spinal cord

35
Q

lateral corticospinal cross over locale

A

medullary pyramids

36
Q

vestibulospinal tract UMN

A

vestibular nucleus @ border of pons and medulla

37
Q

vestibulospinal tract destination

A

LMN in anterior horn of spinal cord

38
Q

vestibulospinal tract cross over

A

ahahah. trick question. they don’t

39
Q

vestibulospinal tract action

A

subconsious regulation of balance and muscle tone

40
Q

tectospinal UMN locale

A

tectum (mesencephalon superior and inferior colliculi)

41
Q

tectospinal destination

A

LMN of anterior gray horns in CERVICAL spinal cord only

42
Q

tectospinal tract cross over

A

mesencephalon

43
Q

tectospinal tract action

A

regulate eye, head, neck, upper limb, position in response to visual and auditory stimuli

44
Q

reticulospinal UMN

A

reticular formation

45
Q

reticulospinal destination

A

LMNS of anterior gray horns of spinal cord

46
Q

reticulospinal tract cross over

A

anooother trick question!! they don’t

47
Q

reticulospinal tract action

A

regulates reflex activity

48
Q

vestibulospinal, tectospinal, reticulospinal paths are part of what general pathway

A

medial motor pathway

49
Q

corticobulbar, lateral/anterior corticospinal paths are part of what general pathway

A

corticospinal pathway

50
Q

rubrospinal tract is part of what general pathway

A

lateral motor pathway

51
Q

rubrospinal tract UMN

A

rednuclei of mesencephalon

52
Q

rubrospinal tract destination

A

lower motor neurons of anterior gray horns of spinal cord

53
Q

rubrospinal tract cross over locale

A

mesencephalon

54
Q

rubrospinal tract action

A

regulation of upper limb muscle tone and movement

55
Q

cells of the primary motor cortex

A

pyramidal cells

56
Q

medial and lateral motor pathways that can do unconscious, involuntary movements

A

vestibulospinal, reticulospinal, tectospinal, rubrospinal

Neuroscience (23 decks)

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