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Terms in this set (15)
a branch of psychology concerned with the links between biology and behavior
a specialized cell transmitting nerve impulses; a nerve cell.
Branchlike parts of a neuron that are specialized to receive information.
the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands
A layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next.
a neural impulse; a brief electrical charge that travels down an axon
the time following an action potential during which a new action potential cannot be initiated
the level of stimulation required to trigger a neural impulse
a neuron's reaction of either firing (with a full-strength response) or not firing.
the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
chemical messengers that cross the synaptic gaps between neurons; travel across the synapse and bind to receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse
a neurotransmitter's reabsorption by the sending neuron
"morphine within"--natural, opiatelike neurotransmitters linked to pain control and to pleasure.
a molecule that, by binding to a receptor site, stimulates a response
a molecule that, by binding to a receptor site, inhibits or blocks a response
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