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14 Cards in this Set
- Front
- Back
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Neurons
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generate and transmit electrical signals called action potentials
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Glia
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provide support and maintain extracellular environment
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Afferent Neurons
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carry sensory information into the nervous system from sensory neurons that convert stimuli into action potentials
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Efferent Neurons
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carry commands to effectors such as muscles, glands. originate fro the brain or spinal chord.
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Interneurons
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store information and communicate between neurons
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Central Nervous System
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consists of cells found in the brain and spinal chord
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Peripheral Nervous System
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neurons and support cells found outside the CNS
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Presynaptic Neuron
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sends the message
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Postsynaptic Neuron
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receives the message
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Oligodendrocytes
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produce myelin and insulate axons in the CNS
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Schwann Cells
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insulate axons in the PNS
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Astrocytes
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contribute to the blood-brain barrier, which protects the brain
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Membrane Potential
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charge imbalance or a potential difference across the cell membrane
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Action Potential
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the mechanism by which neurons send signals to other neurons or to the muscle. All or none event.
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