nervous system 310
Terms
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- the involuntary portion of the nervous system that is involved in maintaining homeostasis
- autonomic nervous system
- a neuron process that carries impulses away from the cell body
- axon
- the portion of the nervous system composed of the brain and spinal cord
- central nervous system
- a neuron process that carries impulses toward the cell body
- dendrite
- a muscle or gland
- effector
- a group of neuron cell bodies
- ganglion
- a wave of depolarization passing over a neuron or muscle fiber
- impulse
- the fatty insulating substance around many axons
- myelin sheath
- a bundle of neuron processes
- nerve
- the outer membrane covering the myelin sheath
- neurilemma
- a nerve cell
- neuron
- a chemical secreted by an axon that triggers that formation of an impulse in the postsynaptic neuron
- neurotransmitter
- portion of the nervous system composed of cranial and spinal nerves
- peripheral nervous system
- portion of the peripheral nervous system that responds to certain stimuli by forming impulses
- receptor
- an involuntary response to a stimulus
- reflex
- the voluntary portion of the nervous system that is involved in conscious activites
- somatic nervous system
- the junction between a neuron and another cell
- synapse