4. What are the problems with a repaired PNS axon?
5. Identify the kind of neuronal pool based on the information provided.
a. Several presynaptic neurons synapse on the same postsynaptic neuron giving strong excitation or inhibition.
b. Input neuron stimulates several pathways which stimulate the output neuron to go on firing for a longer time after input has truly stopped.
c. On presynaptic neuron synapses on 2 or 3 postsynaptic neurons and these postsynaptic neurons (now presynaptic ) synapse on another 2 or 3 postsynaptic neurons.
d. Neurons stimulate each other in a linear sequence but one cell restimulates the first cell (presynaptic neuron) to start the process all over again.
e. This neuron pool is common in the withdrawal reflex.
f. Diaphragm and rib muscles both under subconscious control, but can be consciously overridden when holding your breath.
g. Pain information spreads quickly into multiple areas of CNS.
h. Major type pathway in short-term memory
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