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10 Cards in this Set

  • Front
  • Back
What are the two branches of the Peripheral Nervous System (PNS) ?
Somatic and Automatic Nerves
What is the job of the Central Nervous Sysytem (CNS) ?
It Coordinates and Processes.
Name 3 parts of Neurons.
Could include: dendrites, cell body, axon, myelin sheath, neurilemma, nodes of Ranvier
What are the nodes of Ranvier, and what do they do?
They are the gaps between Schwann cells, in myelin. They speed transmission.
What are the 3 types of neurons?
Sensory, Motor, and Interneuron
What is the first step of neural circuts?
The Reception. That is when the dendrites are stimulated by an environment factor and start an impulse.
What are the other two steps?
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.
What is self-propogating?
when the impulse, once started, moves down the entire axon untill the endplate.
What is the charge difference of a resting impulse on the axon membrane?
- 70 mV
What are the three neurotransmitters that are held in the vesticles on the presynaptic neuron.
Acetychlorine, Dopamine, GABA, and Seratonin.