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Neurotransmitters
Come from within the body
Excite or inhibit neural communication
Acetylcholine
Dopamine
Serotonin
Norepinephrine GABA
Glutamate
Agonist/ Antagonists
Drugs and other chemicals from outside our bodies
Binds to receptor sites and mimic their effects (agonists)
Bind to receptor sites and BLOCK their effects (antagonists)
Heroin
Morphne
Methadone
Opium
Antagonists: naltrexone and naloxone
Bipolar Neuron
The slowdown of neural communication in multiple sclerosis involves degeneration of the
A Thesholds
B Dendrites
C Endocrine Gland
D Pituitary gland
E Myelin sheath
Within a single neuron the action potential
A Travels in one direction toward the axon terminal
B Is generated in the dendrites
C Will be slower if the myelin is present
D Crosses the synapses to the adjacent neurons
E Depends on the movement of charged calcium atoms.
Psychoactive drugs interfere with normal neural transmission. Where does this interference take place?
A Axon
B Cell body
C Myelin sheath
D Synapse
E Hormones
A person with schizophrenia may have an overactive dopamine system. Drugs used to treat this disorder prevent the action of dopamine by keeping it from binding with its receptors. These drugs are
A Agonists
B Somatic
C Sympathetic
D Selectively permeable
E Antagonists
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