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Diencephalon > Components and thalamic nuclei classification > Flashcards

Components and thalamic nuclei classification Flashcards

1
Q

What are the components of diencephalon

A

T
H
E
S

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2
Q

Thalamus is __________ that is located in the

A

Paired medially placed egg shaped

Located lateral to the 3rd ventricle

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3
Q

Thalamus receives information from

A

Cortical and subcorticsl structures

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4
Q

Function of the thalamus

A

Sensory inputs are relayed to the cortex through the thalamus
Output to the cortex from the cerebellum and basal ganglia relays through the thalamus
It relays limbic input to the cortex

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5
Q

Thalamus is a gateway of all sensory inputs to the cortex except for which

A

Olfactory

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6
Q

Mention the classification of thalamic nuclie

Note 4 and 1 relative

A

Ant
Me
La
Intra

A relative made up of

  1. Metathalamic nuclear group
  2. Thalamic reticular nucleus
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7
Q

Lateral nuclei group is divided into

A
  1. Ventral nuclear group

2. Dorsal group

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8
Q

The ventral nuclear group of the lateral nuvlie group has 3 divisions

A
  1. Ventral anterior nucleus
  2. Ventral lateral
    3.Ventral posterior; Ventral posterelateral nuc
    Ventral postmedial nuc
    Ventral post inferior nuc
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9
Q

The dorsal division of the lateral nuclear group is

A

Lateral dorsal
Lateral posterior
Pulvinar

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10
Q

The pulvinar is what

A

Visual association area

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11
Q

The medial nuclei group has 2 divisions

A

Dordo medial nucleus

Dorsal nucleus

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12
Q

The midline nuclei group is also known as——–

It has 4 divisions namely

A

Intralamina nuclei group

Paratenial nucleus
Reunience nuc
Rhomboid nuc
Submedial nuc

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13
Q

The anterior nuclei group has 3 nuclei——–

They are collectively called

A

Anterior ventral AV
anterior dorsal. AD
anterior medial AM

ANTERIOR Nucleus

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14
Q

Metathalamic nuclear group is divided into

A 
1.Medial geniculate nucleus
   Ventral nucleus MGv
    dorsal nucleus MGd
     Medial nucleus MGm
2.Lateral geniculate nucleus
    Dorsal and ventral
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15
Q

The intralaminar nuclear group has 2 divisions namely

A
  1. Roastral IL nucleus

2. Cadual IL nucleus

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16
Q

Mention the sensory nuclei and their functions

A

VPL=somatic sensation for contralateral body
VPM= somatic sensation for contralateral face and taste
Medial geniculate nucleus= hearing
Lateral geniculate nucleus= Vision
Pulvinar= vision processing

17
Q

Mention the motor nuclei and their functions

A

Ventrolateral= modulate and coordinate movt
Ventral anterior= initiate and planing of movement
Ventro inter medial =coordinate movement

18
Q

Hypothalamus is located———-

It extends from ——-

A

It is located below the hypothalamic sulcus and thalamus

Optic chiasma to mamilary bodies

19
Q

The limbic and non specific projection nuclie functions are

A

Anterior nucleus=memory storage and emotions
Mediodorsal= motivation ,drive and emotions
Centromedian= emotional content of pain

20
Q

What is the function of the hypothalamus

A

It maintains homeostasis by regulating 3 functions

  1. Endocrine secretion
  2. Autonomic function
  3. Emotions and drives
20
Q

What is the function of the hypothalamus

A

It maintains homeostasis by regulating 3 functions

  1. Endocrine secretion
  2. Autonomic function
  3. Emotions and drives
21
Q

The hypothalamus has 3 basic subdivisions

A

Supraoptic region
Tuberal region
Mamillary region

22
Q

Supraotic region is most important in _______

Lies above __________

A

Veterinary medicine

Optic chiasm

23
Q

The supraoptic region has 3 nuclei namely

A

Supraoptic nuc
Suprachiasmatic
Paraventricular

24
Q

What nucleus controls circadian rhythms

A

Suprachiasmatic nuc

25
Q

What nucleus secrete oxytocin

A

P

26
Q

What nucleus secrete ADH or vasopressin

Explain the pathway

A

Supraoptic nucleus

27
Q

The tuberal region cells secrete_________
The secretion controls_________
The nuclei of this region are

A

Orexin or hypocretins
Various aspect of sleep
Ventrimedial, dorsimedial, premammillary, arcuate and lateral tuberal

28
Q

Mamillary bodies of the mamillary region is important for

The nucleus of this region are

A

Memory and learning

Tuberomamillary nuc and posterior nuclues

Diencephalon (1 decks)

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