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10 Cards in this Set
- Front
- Back
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What are the two branches of the Peripheral Nervous System (PNS) ?
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Somatic and Automatic Nerves
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What is the job of the Central Nervous Sysytem (CNS) ?
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It Coordinates and Processes.
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Name 3 parts of Neurons.
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Could include: dendrites, cell body, axon, myelin sheath, neurilemma, nodes of Ranvier
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What are the nodes of Ranvier, and what do they do?
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They are the gaps between Schwann cells, in myelin. They speed transmission.
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What are the 3 types of neurons?
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Sensory, Motor, and Interneuron
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What is the first step of neural circuts?
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The Reception. That is when the dendrites are stimulated by an environment factor and start an impulse.
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What are the other two steps?
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Transmission; the passage of the impulse from dendrites to the end plates along the axon. and Processing; when the impulse reaches the end plate and either transmits or doesn't.
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What is self-propogating?
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when the impulse, once started, moves down the entire axon untill the endplate.
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What is the charge difference of a resting impulse on the axon membrane?
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- 70 mV
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What are the three neurotransmitters that are held in the vesticles on the presynaptic neuron.
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Acetychlorine, Dopamine, GABA, and Seratonin.
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