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Neurotransmitters
n/a
28
Biology
Undergraduate 2
09/23/2012

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Term
Ligand
Definition
Anything that binds to a receptor
Term
Agonist
Definition
A drug that produces the same effect as a neurotransmitter
Term
Antagonist
Definition
A drug that produces the opposite effects as a neurotransmitter
Term
Ionotropic Receptor
Definition
Activation opens up an ion channel
Term
Metabotropic Receptor
Definition
Activations causes intercellular events that can secondarily open ion channels
Term
Amino Acid Neurotransmitter
Definition
GABA and Glutamate
Term
Biogenic Amine Neurotransmitter
Definition
Acetylcholine
Term
Monoamine Neurotransmitter
Definition
Serotonin
Term
Catecholamine Neurotransmitter
Definition
Dopamine and Norepinephrine
Term
Peptide Neurotransmitter
Definition
Enkaphalins
Term
GABA Receptors
Definition
A receptors ionotropic; B receptors metabotropic; many binding sites
Term
Glutamate Receptors
Definition
Ionotropic and metabotropic receptors, NMDA and AMPA
Term
GABA Function
Definition
Primary inhibitory neurotransmitter in the brain; regulation of muscle tone; deficiency can cause epilepsy
Term
Glutamate Function
Definition
Primary excitatory neurotransmitter found in the brain and body; involved in learning and schizophrenia
Term
Acetylcholine Receptors
Definition
Ionotropic nicotinic (nAchR) receptors in the PNS; metabotropic muscarinic (mAchR) receptors in the CNS (basal forebrain)
Term
Nicotonic Receptors Function
Definition
Excitatory; found in lungs, heart, skeletal muscle
Term
Muscararinic Receptors Function
Definition
Excitatory and inhibitory depending on location; involved in learning and alzheimer's
Term
Norepinephrine Receptors
Definition
Metabotropic; alpha and beta receptors
Term
Norepinephrine Function
Definition
Excitatory; crucial in PNS; key role in arousal and depression
Term
Dopamine Receptors
Definition
Metabotropic, D1 and D5 excitatory; D2, D3, D4 inhibitory
Term
Dopamine Pathways
Definition
nigrostriatal, mesolimbic, mesocortical
Term
Nigrostriatal Pathway
Definition
involved with the production of movement and Parkinson's disease
Term
Mesolimbic Pathway
Definition
Primary player in addictions, expectation, and reward
Term
Mesocortical Pathway
Definition
Important for normal cognitive function, motivation and emotional response; involved with schizophrenia
Term
Serotonin Receptors
Definition
Ionotropic and metabotropic; 14 receptor types; projections in the raphe nuclei in brainstem, hypothalamus, spinal cord, cortex, and temporal lobe
Term
Serotonin Function
Definition
Inhibitory; involved in mood, sleep, arousal, aggression, depression, OCD, and alcoholism
Term
Enkaphalin Receptors
Definition
Metabotropic; delta, kappa, mu
Term
Enkaphalin Functions
Definition
Inhibitory; endorphins; low dose causes sedation and numbing; high dose causes euphoria and elation
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