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Neuro Test 4 > diencephalon > Flashcards

diencephalon Flashcards

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1
Q

4 structures of the diencephalon

A

thalamus
Hypothalamus
Epithalamus
Subthalamus

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2
Q

thalamus

A

located in the center of the brain
Important processing station

Nearly all pathways projecting to cerebral cortex synapse first in the thalamus

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3
Q

thalamic nuclei process information coming from

A

Basal ganglia
Cerebellum
limbic pathways
Brainstem reticular formation

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4
Q

thalamic nuclei receive dense reciprocal feedback connections from

A

Cortical areas to which they project

more corticothalamic projections than thalamocortical projections

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5
Q

thalamus divided into 3 groups

A

by the internal medullary lamina

Relay nuclei
Association nuclei
Non-specific nuclei

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6
Q

internal medullary lamina is shaped like

A

y shaped

White matter structure

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7
Q

relay nuclei

A

Motor
Ventral anterior
Ventral lateral

sensory
ventral posterolateral
Ventral posteromedial
Medial geniculate
lateral geniculate

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8
Q

association nuclei

A

declarative memory
Anterior nucleus
Lateral dorsal
Midline

Sensory integration
Lateral posterior
pulvinar

Emotion
Medial group

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9
Q

Non-specific nuclei

A

Intralaminar
Reticular

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10
Q

thalamic relay nuclei

A

Receive input from numerous pathways and then project to the cortex

Make up most of thalamus

Receive massive reciprocal connections back from the cortex

Projections to the cortex may localized to specific cortical regions or more diffuse

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11
Q

Somatosensory pathways from the spinal cord relay in

A

The VPL

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12
Q

somatosensory pathways from the cranial nerves relay in the

A

VPM

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13
Q

VPM and VPL project to

A

Primary sensory cortex

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14
Q

Visual information is relayed in the

A

LGN

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15
Q

auditory information is relayed in

A

the MGN

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16
Q

motor pathways from the cerebellum and basal ganglia have thalamic relays in

A

VL
VA

17
Q

VL projects to

A

project to motor, premotor, supplementary motor cortex

18
Q

VA projects to

A

project to motor planning areas

19
Q

Hypothalamus functions

A

homeostasis
Eating, reproductive, and defensive behaviors
Emotional expression
Circadian rhythm
Endocrine regulation
Activation of sympathetic nervous system

20
Q

Epithalamus structures

A

habenula- response to odors

pineal gland- sleepwake cycle modulation

21
Q

subthalamus

A

involved in controlling motor function

contains subthalamic nuclei parts of the red nuclei and substantia nigra

ascending and descending tracts

Neuro Test 4 (9 decks)

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