Thalamus Flashcards

exam 2 (35 cards)

1
Q

relay station

A

thalamus

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2
Q

involved in the maintenance of homeostasis, the regulation of feeding, drinking and sexual activity , circadian rhythm, and emotional expression

A

hypothalamus

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3
Q

mesencephalon develops into the

A

midbrain

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4
Q

diencephalon develops into the

A

thalamus, epithalamus, hypothalamus, subthalamus

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5
Q

Theepithalamusis a small region of the diencephalon consisting of the _________, _______ nuclei, and _________.

A

Theepithalamusis a small region of the diencephalon consisting of the pineal gland, habenular nuclei, and stria medullaris thalami.

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6
Q

The pineal gland contains no true neurons, only

A

glial cells

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7
Q

The stria medullaris connects fibers from

A

the habenular nuclei with the limbic system

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8
Q

Fibers from neurons in the zona incerta project to many areas, including the _________, and may exert an _________ on the motor pathways.

A

including the cerebral cortex and may exert an inhibitory effect on motor pathways

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9
Q

white matter running between the basal ganglia and thalamus

A

internal capsule- fibers from CST and CBT

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10
Q

all sensory systems except the _________ project to the thalamus

A

olfactory system

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11
Q

medial geniculate body is associated with the

A

auditory system

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12
Q

lateral geniculate body is associated with

A

visual system

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13
Q

Geniculate pathway:

Inf collic——>__________——–>Heschl’s gyrus

A

medial genic

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14
Q

Geniculare pathway:

Optic tract——>__________—–>visual cortex

A

lateral genic

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15
Q

somatosensroy nuclei

A

VPL and VPM

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16
Q

VPL nuclei associated with

17
Q

VPM nuclei associated with

18
Q

Somatosensory pathway:

SPT, post cols——->______———>sensory cortex

19
Q

Somatosensory pathway:

Trigeminal (all modalities)——->_______—–>lower end of sensory cortex

20
Q

motor system nuclei

A

VA-basal ganglia and VL- cerebellum

21
Q

cingulate gyrus associated with the

A

limbic cortex

22
Q

regulation of membrane and emotion

A

limbic cortex

23
Q

Motor system:

GP——->_____——>Motor and motor association

A

VA- basal ganglia

24
Q

Motor system:

Deep nuclei——->_____——>Motor and motor association

A

VL- cerebellum

25
Limbic system: MB------> _____---->cingulate gyrus Amygdala---->______---->Prefrontal Cortex
MB------> anterior---->cingulate gyrus Amygdala---->DM---->Prefrontal Cortex
26
the thalamus allows for modulation of signals they enter the cortex. this allows for?
selective attention
27
Lacunar infarcts are small infarcts (2–20 mm in diameter) in the deep cerebral white matter, basal ganglia, or pons, presumed to result from the occlusion of
a single small perforating artery supplying the subcortical areas of the brain
28
Degenerative changes in small blood vessels, marked by the accumulation of a glassy- or waxy-appearing lipid within the vessel wall
Lipohyalinosis
29
A deposit or degenerative accumulation of lipid-containing plaques on the innermost layer of the wall of an artery
Microatheroma
30
pure sensory stroke involves the ____ and ____ and that leads to
VPL and VPM and leads to loss of all sensation from body and face
31
thalamic hemorrhage is associated with issues to the
internal capsule
32
what is usually associated with thalamic hemorrhage which is an area of the brain prone to develop spont. intracerebral hemorrhage
Hypertension
33
thalamic hemorrhage leads to
commonly contralateral hemianesthesia (numbness), mild hemiparesis, hemiataxia, and sometimes intolerable intractable severe dysesthetic pain in half of the body
34
thalamic coma is caused by an infarct of the basilar artery that affects
reticular activating systems
35
Association systems: Cortex ----------> ______-------->Cortex Limbic---------->_______-------->Frontal
Cortex ----------> Pulvinar-------->Cortex Limbic---------->Dorsomedia-------->Frontal