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21 Cards in this Set
- Front
- Back
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Name the parts of the Nervous System
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Central and Peripheal
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Name the parts of the Peripheal Nervous System
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Autonomic and Somatic
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Name the parts of the Autonomic Nervous System
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Sympathetic and Parasympathic
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Name the types of nerves
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Sensory, Motor and Interneurons
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How are reflexes possible?
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Simple pathways that can work even without the message going to the brain.
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Which system controls the skeletal muscles?
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Somatic NS
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Which system controls the glands and organ muscles?
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Autonomic NS
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The parasympathetic nervous system does what and uses which areas of the spinal cord?
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Calms, uses the "craniosacral" = near brain and lower pelvic
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The sympathetic nervous system does what and uses which areas of the spinal cord?
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Arousal, uses the "thoracolumbar" = shoulder thru the mid
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At what stage of a neuron firing is the neuron depolarized?
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Action Potential
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At what stage of a neuron firing is the neuron hyper polar?
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Refractory period
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At what stage of a neuron firing is the neuron hypo polar?
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beginning stages of the Action Potential
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What type of ions make up the depolarizing current in an axion?
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positive Na (sodium)/K (potassium)
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What type of ions make up the hyperpolarizing current in an axion?
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negative ions
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What type of cells are the most numerous?
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glial cells
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Which type of glial cell provides nutrition to neurons?
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Astrocytes
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Which type of glial cell insulate neurons as myelin?
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Oligodendrocytes
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Which type of glial cell is in the CNS and provides a segment of myelin for several axons?
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Oligodendro cells
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Which type of glial cell is in the PNS and provides a sheath on a single axon?
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Schwann cells
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Nerves are part of which system?
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PNS
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What do nerves do?
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connect muscles, glands & sense organs to the CNS
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