Ventral Tegmental Area Flashcards

1
Q

Ventral Tegmental

Area is Located between _____ and _____ nucleus.

A

substantia nigra; red nucleus

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2
Q

Ventral Tegmental
Area Synthesizes and releases
_____.

A

dopamine

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3
Q

Where does Ventral tegmental area projects to?

A

Mainly Nucleus accumbens; Hippocampal formation Amygdala
Hypothalamus
Cortex

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4
Q

Where does Ventral tegmental area receives input from?

A

Amygdala

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5
Q

Where is dopamine released?

A

Striatum (Includes substantia nigra)

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6
Q

Nucleus Accumbens is aka?

A

Ventral striatum

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7
Q

Nucleus accumbens receives input from?

A

Ventral tegmental area

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8
Q

What receptor does nucleus accumbens use?

A

D3

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9
Q

What is the important function of Nucleus accumbens?

A

Involved in behavioral responses to stimuli perceived as rewards. (Reward circuit)

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10
Q

Drugs of abuse activate which system?

A

Nucleus accumbens

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11
Q

_____ enhance dopamine release from
presynaptic terminals; block reincorporation in DA into
synaptic vesicles

A

Amphetamines

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12
Q

_____ potentiates the action of DA by binding to the

dopamine reuptake transporter blocking its reuptake

A

Cocaine

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13
Q

Opiates (heroin) activate specific _____ receptors

located on interneurons

A

inhibitory

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14
Q

_____ attaches to specific excitatory receptors on neuron
cell bodies in the VTA and induces elevated levels of
dopamine in the nucleus accumbens

A

Nicotine

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15
Q

_____ activate specific excitatory receptors on DA

nerve endings

A

Cannabinoids

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