diencephalon and forebrain Flashcards

1
Q

Function of internal capsule

A

connects cortex to the thalamus and brainstem

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2
Q

components of diencephalon

A

hypothalamus and thalamus

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3
Q

Function of hypothalamus

A

Homeostasis and is intimately associated with the pituitary and a network of visceral control structures
in the brain including: amygdala, preoptic area, nuc. solitary tract, and autonomic preganglionic motor nuclei.Homeostasis and is intimately associated with the pituitary and a network of visceral control structures
in the brain including: amygdala, preoptic area, nuc. solitary tract, and autonomic preganglionic motor nuclei.Homeostasis and is intimately associated with the pituitary and a network of visceral control structures
in the brain including: amygdala, preoptic area, nuc. solitary tract, and autonomic preganglionic motor nuclei.

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4
Q

Function of thalamus

A

relay center to cortex

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5
Q

location and function of Brodmann area 1-3, associated gyri?

A

primary sensory, postcentral gyrus

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6
Q

location and function of Brodmann area 4, associated gyri?

A

primary motor, precentral gyrus

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7
Q

location and function of Brodmann area 17

A

primary visual

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8
Q

location and function of Brodmann area 41

A

primary auditory

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9
Q

Where does the dorsomedial thalamus project

A

frontal association cortex

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10
Q

where does the anterior nucleus of thalamus project

A

cingulate gyrus of cortex

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11
Q

where does the VA/VL of the thalamus project to?

A

motor cortex

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12
Q

where does the VPM/VPL of thalamus project to

A

somatosensory cortex

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13
Q

Where does the lateral geniculate nucleus of thalamus project to

A

visual cortex

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14
Q

where does the medial geniculate nucleus of thalamus project to

A

auditory cortex

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15
Q

where does the pulvinar of the thalamus project to

A

parieto-occiptal association cortex

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16
Q

where does the globus pallidus and cerebellum project to

A

thalamus (specific location?)

17
Q

where does optic tract project to

A

LGN

18
Q

where does inferior brachium project to

A

MGN

19
Q

anterior and posterior locations of the internal capsule

A

Anteriorly, the internal capsule lies between the caudate nucleus and the lentiform nucleus; posteriorly, it lies
between the thalamus and lentiform nucleusAnteriorly, the internal capsule lies between the caudate nucleus and the lentiform nucleus; posteriorly, it lies
between the thalamus and lentiform nucleus

20
Q

Where does internal capsule become corona radiata

A

In the cerebral hemispheres

21
Q

Where does anterior internal capsule become posterior?

A

At interventricular foramen in anterior part of thalamus

22
Q

How can you distinguish where the anterior and posterior limbs of internal capsule are?

A

The anterior limb is bordered by the caudate and putamen/globus pallidus and the posterior limb is bordered by the thalamus and putamen/globus pallidus.

23
Q

List origin and destination for anterior limb of internal capsule

A

origin: anterior nucleus of thalamus, and DM nucleus. Destination: cingulate gyrus and prefrontal cortex respectively

24
Q

List origin and destination for posterior limb of internal capsule

A

origin: motor cortex, VPL/VPM. Destination: spinal cord/brainstem and postcentral gyrus respectively

25
Q

List origin and destination for retrolenticular limb of internal capsule

A

origin: Pulvinar and LGN. Destination: parietal association cortex and visual cortex respectively

26
Q

List origin and destination for sublenticular limb of internal capsule

A

Origin: LGN and MGN. Destination: Visual cortex and auditory cortex respectively

27
Q

Two major circuits of limbic system and functions

A

1) Amygdala-Hypothalamus-stria terminalis; this circuit is
related to emotions and homeostasis. 2) Papez circuit: hippocampus-mammillary bodies-anterior nuc. of thalamuscingulate gyrus-parahippocampal gyrus-hippocampus: this circuit is related to long term memory1) Amygdala-Hypothalamus-stria terminalis; this circuit is
related to emotions and homeostasis. 2) Papez circuit: hippocampus-mammillary bodies-anterior nuc. of thalamuscingulate gyrus-parahippocampal gyrus-hippocampus: this circuit is related to long term memory

28
Q

inputs to amygdala

A

Direct from olfactory. Indirect from all other sensory modalities, especially visceral