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Neuro > Unit 4: The Thalamus > Flashcards

Unit 4: The Thalamus Flashcards

1
Q

L1: Awakening and interruption of slow wave EEG tracings occurs via activation of _____-ergic neurons in the reticular activating system.

A

cholinergic

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2
Q

L1: Opening of T-type Calcium channels in thalamic relay neurons results in characteristic spikes at a frequency of __.

A

3 Hz

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3
Q

L1: Valproic acid and ethosuximide inhibit __________.

A

T-type Ca channels

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4
Q

L1: Where does taste information reside in the cortex?

A

Insular Cortex

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5
Q

L1: Which molecular structure is thought to play a role in absence seizures?

A

T-type Ca channels

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6
Q

L1: Which thalamic nucleus? Auditory information

A

MGN

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7
Q

L1: Which thalamic nucleus? Connects with Brodmann Areas 1-3

A

VPL, VPM

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8
Q

L1: Which thalamic nucleus? Hippocampal and Limbic information

A

Anterior

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9
Q

L1: Which thalamic nucleus? Somatosensory information (body)

A

VPL

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10
Q

L1: Which thalamic nucleus? Somatosensory information (face)

A

VPM

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11
Q

L1: Which thalamic nucleus? Taste information

A

VPM

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12
Q

L1: Which thalamic nucleus? Visual information

A

LGN

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13
Q

L2: ________ neurons inhibit thalamic relay neurons via release of GABA.

A

Thalamic reticular

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14
Q

L2: Direct and indirect effects on the thalamus, especially those affecting sleep and wakefulness, are mediated by _______-ergic neurons from the ________.

A

Serotonergic; raphe nuclei

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15
Q

L2: Fight or flight behaviors result from _____-ergic neurons in the ________ that release NT into the thalamus.

A

noradrenergic; locus coeruleus

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16
Q

L2: Thalamic relay neurons have a _______ channel that only conducts at ____-polarized potentials.

A

T-type Calcium; hyper

17
Q

L2: Which thalamic nucleus? Connects with Brodmann Area 17

A

LGN

18
Q

L2: Which thalamic nucleus? Connects with Brodmann Area 4

A

VA, VL

19
Q

L2: Which thalamic nucleus? Connects with Brodmann Area 41

A

MGN

20
Q

L2: Which thalamic nucleus? Includes fibers of the anterior limb of the internal capsule

A

DM, Ant

21
Q

L2: Which thalamic nucleus? Includes fibers of the posterior limb of the internal capsule

A

VPL, VPM, (Motor)

22
Q

L2: Which thalamic nucleus? Inlcudes fibers of the retrolenticular limb of the internal capsule

A

LGN, Pulvinar (connects to parietal association areas)

23
Q

L2: Which thalamic nucleus? Inlcudes fibers of the sublenticular limb of the internal capsule

A

MGN, LGN

24
Q

L3: ________ neurons convey sensory information received in the thalamus to _______ neurons in layer __ of the cortex via _______ (NT) synapses

A

Thalamic relay; pyramidal; 4; glutamatergic

Neuro (40 decks)

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