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Neuroanatomy > Thalamus and Hypothalamus > Flashcards

Thalamus and Hypothalamus Flashcards

1
Q

Anterior Nucleus

A

correlates to cingulate gyrus

promote working memory or learning

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2
Q

Mediodorsal Nucleus

A

correlates to prefrontal cortex
receives input from amygdala
motivation

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3
Q

Pulvinar Nucleus

A

correlates to parieto-occipital cortex and superior colliculi
visual- auto eye mvmts for tracking

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4
Q

Medial Geniculate Nucleus

A

correlates to auditory cortex

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5
Q

Lateral Geniculate Nucleus

A

correlates to visual cortex

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6
Q

Ventral Posteriomedial Nucleus

A

correlates to somatosensory cortex

face

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7
Q

Ventral Posteriolateral Nucleus

A

correlates to somatosensory cortex

body

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8
Q

Ventral Anterior Nucleus

A

correlates to substantia nigra, pars reticulata, internal globus pallidus

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9
Q

Ventral Lateral Nucleus

A

correlates to substantia nigra, pars reticulata, internal globus pallidus
deep cerebellar nucleus

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10
Q

Lateral Dorsal Nucleus

A

correlates to cingulate gyrus

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11
Q

Intralaminar Nucleus

A

correlates to internal globus pallidus, reticular formation

Reticular Activating System

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12
Q

Reticular Activating System

A

reticular formation activates intralaminar nuclei
maintain conscious state
disrupt- lose consciousness

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13
Q

Diencephalic Amnesia

A

lesion of anterior nucleus

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14
Q

Korsakoff’s Syndrome

A

infarct or alcoholism associated degeration causing thiamine deficiency
impaired info transfer from working to long term memory- AN

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15
Q

Mediodorsal Lesions

A

disorientation to environment
learning/ memory impairment
Major Depressive Disorder

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16
Q

Blood Supply to Thalamus

A

Posterior Cerebral and Posterior Communicating

17
Q

Damage to L LGN

A

right homonymous hemianopia

18
Q

Damage to L MGN

A

impaired binaural processing (spatial localization)

19
Q

Damage to L VPL and VPM

A

right face and body sensory loss

20
Q

Damage to L VA and VL

A

impaired motor coordination and fine tuning

21
Q

Thalamostriate Vein

A

drains thalamus

22
Q

Ant Hypothalamic Area

A

Heat dissipation
thermosensory neurons
activate sweating and vasodilation

23
Q

Paraventricular Nucleus

A

increase BP and heart rate

24
Q

Dorsomedial Nucleus

A

increase blood pressure and heart rate

25
Q

Posterior Hypothalamic Nucleus/ Area

A

Heat Conservation
thermosensitive neurons
activates shivering

26
Q

Hypocretin/ Orexin

A

promotes wake state and eating
in lateral hypothalamic area
deficiency- narcolepsy

27
Q

Ventromedial N

A

feeding suppression

28
Q

Lateral Hypothalamic Area

A

feeding promotion

29
Q

Arcuate Nucleus

A

inhibits feeding

30
Q

Suprachiasmatic Nucleus

A

regulates circadian rhythm

Neuroanatomy (7 decks)

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