What is the difference in a neuron when it is in a background or excited state? Fire the neuron. What part of the neuron is the electricity "fired through?

Which of the following cells helps control the concentration of ions in the chemical environment surrounding the neurons? satellite cells astrocytes Schwann cells oligodendrocytes two of the above

What is the importance of the sodium-potassium pump in neuron function? What do you think would be the effect on action potentials if the sodium-potassium pump stopped functioning due to the lack of ATP?

Assume a neuron is at rest and the following changes happen: Step 1: Neurotransmitter binds to an ionotropic excitatory neurotransmitter receptor causing an EPSP.  Step 2: With the neurotransmitter still bound either a NAM or non-competitive antagonist bind to the allosteric site of the receptor. Answer the following questions that explains how the NAM and non-competitive antagonist would differ in their actions.   4.) A. Going from step 1 to step 2 what would happen to the ionotropic receptor (ion channel) as a result of the NAM. B. Going from step 1 to step 2 what would happen to the ionotropic receptor (ion channel) as a result of the non-competitive antagonist.  C. Going from step 1 to step 2 how would membrane potential change as a result of the NAM D. Going from step 1 to step 2 how would the membrane potential change as a result of the non-competitive antagonist.