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Neuroanatomy > Thalamus > Flashcards

Thalamus Flashcards

1
Q

What are the components of the Diencephalon?

A

Epithalamus
Thalamus
Subthalamus
Hypothalamus

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2
Q

Epithalamus Features

A

Most dorsal
Pineal Gland
Habenula

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3
Q

Subthalamus Features

A

Beneath thalamus
Subthalamic Nucleus
Zona Incerta

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4
Q

Hypothalamus Features

A

Tuber Cinereum
Infindubulum
Mammillary bodies

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5
Q

What are the thalami joined by?

A

Interthalamic Adhesion

Massa Intermedia

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6
Q

What are the stria and where do they lie?

A

Stria Medullaris: dorsomedial margin of thalamus

Stria Terminalis: between the thalamus and the caudate nucleus

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7
Q

Internal Organisation of the thalamus

A

Internal Medullary Lamina

Lateral Medullary Lamina

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8
Q

What fibres pass through the LML?

A

Thalamocortical and corticothalamic fibres

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9
Q

Where is the Reticular Nucleus?

A

Between the LML and the internal capsule

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10
Q

Where are the specific nuclei located?

A

Ventral part of lateral group

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11
Q

What are the complexes of the thalamus?

A

Lateral complex
Anterior complex
Medial complex

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12
Q

Divisions of the Lateral Group

A

Ventral

Dorsal

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13
Q

Nuclei of the Ventral Lateral Complex

A 
Ventral Posterior Nucleus
Lateral Geniculate Nucleus
Medial Geniculate Nucleus
Ventral Anterior Nucleus
Ventral Lateral Nucleus
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14
Q

VPN features

A

Between VLN and pulvinar
VPL: spinothalamic and medial lemniscus
VPM: trigeminothalamic tract
NS & Vestibular fibres

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15
Q

LGN features

A

Posterior pole
Site of termination of the optic tract
Sends fibres to visual cortex

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16
Q

MGN features

A

Part of auditory system
Receives fibres from the IC
Projects to the primary auditory cortex

17
Q

VAN features

A

VApc (primary): from Internal Globus Pallidus
VAmc (magnocellular): from Substantia Nigra
Projects to premotor cortex

18
Q

VLN features

A

VLo (oralis) & VLm (medialis): Pallidal and nigral afferents
VLc (caudalis): cerebellar afferents

19
Q

Nuclei of the Dorsal Lateral Complex

A

Lateral Dorsal Nucleus
Lateral Posterior Nucleus
Pulvinar

20
Q

Lateral Dorsal Nucleus features

A

Part of the limbic system
afferents from hippocampus
efferents to cingulate gyrus

21
Q

Lateral Posterior Nucleus features

A

Connects to the Sensory Association Cortex

22
Q

Pulvinar features

A

Association cortices of PTO lobes

23
Q

Anterior Nuclear Group Features

A

Anteroventral, Anteromedial and Anterodorsal Nuclei
Part of limbic system
Mammilliothalmic tract
projects to the cingulate gyrus

24
Q

Medial Nuclear Group Features

A

Mediodorsal Nucleus: afferns from hypothalamus and amigdala

Projects to prefrontal cortex

25
Q

Intralaminar Nuclei Features

A 
Centromedian Nucleus
parafascicular Nucleus
Afferents: reticular formation
Spinothalamic tract
trigeminothalamic tract
Efferents: to basal ganglia

Neuroanatomy (1 decks)

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