Nervous System Review BRHS Michelle Wenzel
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- A motor neuron will stimulate an effector if....
- Sufficient excitatory impulses are recieved from association neurons.
- Why is myelin important?
- Because it forms a covering on axons that increases the speed of impulse conduction.
- What are neurons?
- Cells that conduct nerve impulses
- What are regularly occuring gaps between sections of the myelin sheath and along the axon?
- Nodes of Ranvier
- Stimulation of the sympathetic nervous system would cause?
- Increase in heart rate and a rise in blood adrenallin level.
- What does PNS and CNS stand for?
- Peripheral Nervous System and Central Nervous System
- Begin with sense organ or receptor and carry impulses to CNS?
- Sensory neurons
- For neural circuits every pathway must have these three things
- Reception, transmission, and processing
- What is the All or None theory?
- The neuron either responds fully or not at all.
- Space below a neurons axon and target.
- Synapse