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PNS Vocab

Dendrite Process of the neuron that receives input from other neurons
Axon A nerve fiber; conducts a nerve impulse away from a neuron cell body
Myelin Sheath Fatty material that forms a covering around nerve fibers
Schwann Cell Type of neuroglial cell that surrounds a fiber of a peripheral nerve, forming a neurilemma and myelin
Node of Ranvier Short region of exposed (unmyelinated) axon between Schwann cells on neurons of the peripheral nervous system
Effector A muscle or gland that effects change in the body
Receptor Specialized cells that provide information about the environment transmits a signal inside the cell
Refractory Period Time period following stimulation during which a neuron or muscle fiber will not respond to stimulus
Reflex Arc Nerve pathway, consisting of a sensory neuron, interneuron, and motor neuron
Spinal Nerves Nerves that arise from the spinal cord
Resting Potential Difference in electrical charge between the inside and outside of undisturbed nerve cell membrane
Reflexes Rapid, automatic response to a stimulus
Autonomic Nervous System Portion of the nervous system that controls the viscera
Somatic Nervous System Motor pathways of the peripheral nervous system that lead to the skin and muscles
Peripheral Nervous System All nervous organs except the brain and spinal cord.
Created by: erynfabro
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