1. Which of the following axons would have the slowest rate ofaction potential propagation?

   		Unmyelinated, 10 um diameter
   		Myelinated, 10 um diameter
   		Unmyelinated, 500 um diameter
   		Myelinated, 500 um diameter
   		Action potentials travel at the same rate in all axons

2. Which of the following statements about synaptic and actionpotentials is correct?

   		Action potentials are unidirectional and do not travelbackwards
   		During the relative refractory period, another action potentialcan never be generated
   		An inhibitory synaptic potential is called an EPSP
   		During the rising phase of an action potential, the membranepotential becomes more negative
   		At the peak of an action potential, the membrane potential is 0mV

3. Neurons that detect and bring information from the internal andexternal environment into the central nervous system are classifiedas _____________

   		anterograde
   		efferent
   		sensory
   		motor
   		axoplasmic

4. A neurotransmitter released at a chemical synapse will diffuseacross the synaptic cleft and bind to _____

   		cell adhesions.
   		voltage-gated ion channels.
   		ligand-gated ion channels.
   		the neurotrophic space.
   		intercalated discs.

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The detailed answer for the above question is provided below 1 Unmyelinated 10 um diameter The rate of action potential propagation is slowest in unmy... View the full answer