a branch of psychology concerned with
the links between biology and behavior.
biological psychology
(Myers Psychology for AP 1e pp. 010,
052)
a nerve cell; the basic building block of
neuron the nervous system. (Myers Psychology
for AP 1e p. 053)
neurons that carry incoming information
from the sensory receptors to the brain
sensory neurons
and spinal cord. (Myers Psychology for
AP 1e p. 053)
neurons that carry outgoing information
from the brain and spinal cord to the
motor neurons
muscles and glands. (Myers Psychology
for AP 1e p. 053)
neurons within the brain and spinal cord
that communicate internally and inter-
interneurons vene between the sensory inputs and
motor outputs. (Myers Psychology for AP
1e p. 053)
the bushy, branching extensions of a
neuron that receive messages and con-
dendrite
duct impulses toward the cell body. (My-
ers Psychology for AP 1e p. 053)
the extension of a neuron, ending in
branching terminal fibers, through which
axon messages pass to other neurons or to
muscles or glands. (Myers Psychology
for AP 1e p. 053)
a layer of fatty tissue segmentally en-
casing the fibers of many neurons; en-
ables vastly greater transmission speed
myelin sheath of neural impulses as the impulse hops
from one node to the next. (Myers Psy-
chology for AP 1e p. 053)
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, UNIT 2 QUIZ: NEUROBIOLOGY
a neural impulse; a brief electrical charge
action potential that travels down an axon. (Myers Psy-
chology for AP 1e p. 053)
the level of stimulation required to trigger
threshold a neural impulse. (Myers Psychology for
AP 1e p. 054)
the junction between the axon tip of the
sending neuron and the dendrite or cell
body of the receiving neuron. The tiny
synapse
gap at this junction is called the synaptic
gap or synaptic cleft. (Myers Psychology
for AP 1e p. 055)
chemical messengers that cross the
synaptic gaps between neurons. When
released by the sending neuron, they
travel across the synapse and bind to
neurotransmitters
receptor sites on the receiving neuron,
thereby influencing whether that neuron
will generate a neural impulse. (Myers
Psychology for AP 1e p. 055)
a neurotransmitter's reabsorption by the
reuptake sending neuron. (Myers Psychology for
AP 1e p. 055)
"morphine within"—natural, opiatelike
neurotransmitters linked to pain control
endorphins
and to pleasure. (Myers Psychology for
AP 1e p. 057)
the body's speedy, electrochemical com-
munication network, consisting of all the
nervous system nerve cells of the peripheral and central
nervous systems. (Myers Psychology for
AP 1e p. 059)
the brain and spinal cord. (Myers Psy-
central nervous system (CNS)
chology for AP 1e p. 059)
the sensory and motor neurons that con-
peripheral nervous system (PNS)
nect the central nervous system (CNS) to
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