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13 Cards in this Set
- Front
- Back
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The 2 catecholamines
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Dopamine & Norepinephrine
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The indolamine
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Serotonin (aka 5 HT hydroxytryptamine)
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Single neuron can affect a large # of neurons
ex: ANS |
Divergence
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Neurotransmitter never makes synapses but are released into the volume of tissue affecting many target neurons. Ex: peptides
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Volume conduction
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Uptake 1 is for what neurotransmitters?
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Reuptake of DA & NE
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Where does NE orig,inate?
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Locus coeruleus
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Function of NE
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Attention, arousal, sleep-wake cycles, learning, memory, anxiety, pain, mood, & brain metabolism, new, unexpected stimuli
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Drugs that activate noradrenergic system
Ie: cocaine, amphetamines |
Psychostimulants
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Where does the DA system originate?
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Sustantia nigra: regulation of mov't, problem causes Parkinson's disease
Ventral tegmental area: emotional control, rewards |
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Where does Serotonin arise from?
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Raphe nuclei in brainstem
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Function of serotonin
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Sleep-wake cycle, mood, emotion, impulsivness
DO NOT initiate behaviors, they MODIFY them |
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g-protein coupled receptors
Ligand-gated ion channel |
Muscarinic
Nicotinic |
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Ach is located in what areas
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1. Pontomesencephalotegmental complex: regulates sensory relays to higher portions
2. basal forebrain complex-regulates learning & memory |
