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24 Cards in this Set
- Front
- Back
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Peripheral Nervous System |
Consists of nerves and supporting cells |
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Central Nervous System |
Consists of the brain and spinal cord, processes information and creates responses that are delivere to the appropriate part of the body |
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Cell body |
Contains the nucleus and much of the cytoplasm |
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Dendrites |
Receive impulsives from other neurons and carry impulses to the cell body |
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Axons |
Carry's impulses away from the cell body |
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Resting potential |
1/20th of the voltage of a flashlight battery |
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Action potential |
Reversal of charges from more negatively charged to more positively charged charges |
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Threshold |
Minimum level of a stimulus that is required to cause an impulse in a neuron |
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Synapse |
Point at which a neuron transfers an impulse to another cell |
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Dopamine |
Associated with the brains pleasure and reward center |
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Somatic Nervous System |
Regulates activities that are under conscious control |
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Reflex arc |
Impulses that travel a pathway at rapid speed |
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Autonomic nervous system |
Regulates activities that are involuntary |
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Cochlea |
Part of the ear filled with fluid that sends impulses to the brain |
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Cerebrum |
Part of the brain responsible for voluntary activities |
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Cerebral cortex |
Outer layer of the cerebrum |
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Neuron |
Cells that transport impulses throughout the human brain |
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Thamamus |
Receives messages from sensory receptors throughout the body and then relays the information to the cerebrum for processing |
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Cerebellum |
Second largest region, controls muscle activity and sensory information |
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Brain stem |
Connects the brain and spinal cord |
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Frontal lobe |
Part of the brain that controls judgment and decision making |
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Temporal lobe |
Controls hearing and smell |
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Occipital lobe |
Controls vision |
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Parietal lobe |
Controls hearing and speech |
