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24 Cards in this Set
- Front
- Back
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Reuptake inhibitor |
prevents certain neurotransmitters from being reabsorbed |
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Right brain hemisphere |
more spatial; less densely wired (longer axons) |
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Threshold |
reached when neural excitation is stronger than inhibition |
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Plasticity |
brains ability to reorganize and adapt |
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Parasympathetic nervous system |
quiets one organ at a time |
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Medulla |
regulates heartbeat and breathing |
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Vesicles |
where neurotransmitters are stored |
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Sympathetic nervous system |
arouses and acts as a unit |
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Left brain hemisphere |
more densely wired; logic and detail |
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Cerebellum |
responsible for large muscle coordination, skill memory and balance |
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Hypothalamus |
controls homeostasis |
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Broca's area |
responsable for language formation and grammar |
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Glial cells |
support and nourish the neurons; from the myelin sheath |
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Synapse |
termini end button + gap + neurotransmitter receptor sites |
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"All-or-none response" |
neurons "fire" only when a threshold level is reached |
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Primary sensory cortex |
strip located at the front of the parietal lobe |
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Neurotransmitters |
excitatory or inhibitory chemicals released from axon terminal buttons |
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Wernicke's area |
responsable for understanding language |
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Thalamus |
sensory filter and switchboard |
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Myelin sheath |
insulates the axon; speeds up the action potential |
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Optic chiasm |
1/2 of the optic nerve fibers cross to the opposite hemisphere |
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Limbic system |
controls memory, emotions and homeostasis |
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Primary motor cortex |
strip located at the rear of the frontal lobe |
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Corpus callosum |
communication bridge between brain hemispheres |
