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AP Psych Barrons

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Biological Bases of Behavior<br />

CH<strong>AP</strong>TER 3<br />

KEY TERMS<br />

Neuroanatomy<br />

Neuron<br />

Dendrites<br />

Cell body (also called the soma)<br />

Axon<br />

Myelin sheath<br />

Terminal buttons (also called end buttons, axon terminal, terminal branches of axon, and synaptic knobs)<br />

Neurotransmitters<br />

Synapse<br />

Receptor sites<br />

Threshold<br />

Action potential<br />

All-or-none principle<br />

Neural firing<br />

Excitatory neurotransmitters<br />

Inhibitory neurotransmitters<br />

Acetylcholine<br />

Dopamine<br />

Endorphins<br />

Serotonin<br />

Afferent neurons (or sensory neurons)<br />

Efferent neurons (or motor neurons)<br />

Central nervous system<br />

Spinal cord<br />

Peripheral nervous system<br />

Somatic nervous system<br />

Autonomic nervous system<br />

Sympathetic nervous system<br />

Parasympathetic nervous system<br />

Accidents<br />

Lesions<br />

Electroencephalogram (EEG)<br />

Computerized axial tomography (CAT or CT scan)<br />

Magnetic resonance Imaging (MRI scan)<br />

Positron emission tomography (PET scan)<br />

Functional MRI (fMRI)<br />

Hindbrain<br />

Medulla<br />

Pons<br />

Cerebellum<br />

Midbrain<br />

Reticular formation<br />

Forebrain<br />

Thalamus<br />

Hypothalamus<br />

Amygdala<br />

Hippocampus<br />

Limbic system<br />

Cerebral cortex

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