Thalamus Flashcards

1
Q

Thalamus function

A

Integration of sensory information in brain

Regulation of motor activity and consciousness

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2
Q

Division of gray matter nuclei in thalamus

A

Anterior group
Medial group
Lateral group

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3
Q

What is the name of Y shaped white matter that divides the gray matter nuclei

A

Medial medullary lamina

Or internal medullary lamina

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4
Q

Pulvinar of thalamus functions

A

Vision
Language
Sensation
Pain

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5
Q

Medial geniculate nucleus functions

A

Relay station from auditory pathways which receives information from inferior colliculi

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6
Q

Lateral geniculate nucleus function

A

Primary visual relay center which receives axons from retina through optic nerves and tracts and from superior colliculi

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7
Q

What constitutes the metathalamus

A

Both Geniculate nuclei

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8
Q

What is Stria medullaris

A

Thin tract of white matter that extends from septal nuclei, hypothalamus and anterior nucli of thalamus

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9
Q

Epithalamus conpoisiton

A

Habenular trigone
Habenular commissure
Pineal gland

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10
Q

Pineal gland function

A

Release various hormones like melatonine

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11
Q

Branches of which artery supply thalamus

A

Posterior cerebral artery

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12
Q

3 types of nuclei

A

Relay
Association
Non specific

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13
Q

Relay nuclei function

A

Modulate and relay sensory inputs

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14
Q

Association nuclei function

A

Receive input form cerebral cortex, limbic sustem , basal ganglia , non specific thalamic nuclei

And send signal back to cortex

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15
Q

Non specific nuclei

A

Receive input from reticular formation, cortex and other nuclei in thalamus
Inhibit specific pathways to allow attention and arousal

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16
Q

Thalamic nuclei

A
Anterior nuclei
Medial nuclei
Lateral nuclei 
Medial medullary lamina
Intralaminar nuclei 
Thalamic reticular nucleus
17
Q

Anterior nuclei of thalamus composition

A

Antero ventral
Anteromedial
Anterodorsal

18
Q

Anterior nuclei function

A

Emotional states
Attention
Alterness
Memory acquisition

19
Q

medial nuclei function

A

Integraton of olfactory motor visceral sensory information

Relate information to emotional states