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10 Cards in this Set
- Front
- Back
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What does PNS stand for???
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Perhipheral Nervouse system
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What does the cell body do
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contains nucleus and cytoplasm to sustain and coordinate the cell
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What are the 5 main components of the reflex arc
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receptor, sensory neuron, inter nueron, motor neuron, and the effector
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What is Action Potential?
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Rapid reversal of charge across the axon membrane
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What is the depolarization phase?
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neuron is stimulated enough to cause NA+ gates to open, causing a rush of NA+
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Summation is......
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the sum effect of all neurotransmitters acting on a neuron
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what do inhibitory transmitters do?
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Cause K+ to leak out hyperpolarizing the membrane
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what is the synapse
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space between a neurons axon and its target also called synaptic cleft
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what is a nuerilema
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it is a protective membrane that helps in regeneration of a nueron
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In a resting membrane are more channels/pores open to the K+ ions?
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yes
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