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PSY 101 STRAIGHTERLINE FINAL EXAM QUESTIONS WITH CORRECT ANSWERS
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PSY 101 STRAIGHTERLINE FINAL EXAM QUESTIONS WITH CORRECT ANSWERS
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PSY 101 STRAIGHTERLINE FINAL EXAMQUESTIONS WITH CORRECT ANSWERS
All or nothing principle - Answer-The principle that once the electrical impulse reaches a
certain level of intensity (its threshold), it fires and moves all the way down the axon
without losing any intensity.
Synapses - Answer-tiny gaps between dentrites and axons of different neurons
Neuraltransmitters - Answer-transmit, or carry, information across the synaptic gap to
the next neuron
Acetylcholine (ACh) - Answer-stimulates the firing of neurons and is involved in the
action of muscles, learning, and memory
Alzheimer's disease - Answer-degenerative brain disorder that involves a decline in
memory, have an acetylcholine deficiency
GABA - Answer-a major inhibitory neurotransmitter
decreased GABA levels - Answer-lead to anxiety
glutamate - Answer-exciting many neurons to fire and is especially involved in learning
and memory
norepinephrine - Answer-inhibits the firing of neurons in the central nervous system, but
it excites the heart muscle, intestines, and urogenital tract
dopamine - Answer-control voluntary movement and affects sleep, mood, attention,
learning, and the ability to recognize rewards in the environment
seratonin - Answer-involved in the regulation of sleep, mood, attention, and learning
endorphins - Answer-natural opiates that mainly stimulate the firing of neurons; block
pain & increase pleasure
oxytocin - Answer-hormone and neurotransmitter that plays an important role in the
experience of love and social bonding
agonist - Answer-A chemical that mimics the action of a neurotransmitter.
antagonist - Answer-drug that blocks a neurotransmitter's effects
, brain lesioning - Answer-abnormal disruption in the tissue of the brain resulting from
injury or disease
Electroencephalogram (EEG) - Answer-records the brain's electrical activity
hindbrain - Answer-medulla, pons, cerebellum; located at skull's rear
thalamus - Answer-relays info b/w lower and higher brain centers
hypothalamus - Answer-governs eating, drinking, and sex; plays a role in emotion and
stress
reticular formation - Answer-a nerve network in the brainstem that plays an important
role in controlling arousal & stereotyped patterns
medulla - Answer-governs breathing and reflexes
cerebellum - Answer-A large structure of the hindbrain that controls motor coordination
pons - Answer-governs sleep and arousal
Hippocampus - Answer-a brain structure that is associated with the formation of
memories
amygdala - Answer-A limbic system structure involved in memory and emotion,
particularly fear and aggression
brain stem - Answer-Connects the brain and spinal cord
midbrain - Answer-A small part of the brain above the pons that integrates sensory
information and relays it upward.
forebrain - Answer-The largest and most complicated region of the brain, including the
thalamus, hypothalamus, limbic system, and cerebrum.
limbic system - Answer-neural system (including the hippocampus, amygdala, and
hypothalamus) located below the cerebral hemispheres; associated with emotions and
drives.
basal ganglia - Answer-structures in the forebrain that help to control movement
cerebral cortex - Answer-The intricate fabric of interconnected neural cells covering the
cerebral hemispheres; the body's ultimate control and information-processing center.
neocortex - Answer-The outermost part of the cerebral cortex, making up 80 percent of
the cortex in the human brain; responsible for high level thinking
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