Name and briefly describe the two (2) refractory periods.  Also, give two (2) reasons why the refractory period is important.

Define: Hyperpolarization vs. Depolarization Electrical Gradient

Define: Afferent Neuron vs. Efferent Neuron All or none Law

Answer the following question regarding the resting potential:    3.      Explain the source of the resting potential.  Include in your discussion A and B above plus other forces operating to maintain -70 mV

List five (5) features of neurons

Provide the two (2) primary functions of the nervous system.

Answer the following question regarding the resting potential   2. Indicate the permeability of the membrane during the resting potential to each of the Ions present.  

Label and Describe the main parts of a neuron.

Contrast: Sensory Neuron vs. Motor Neuron vs. Interneuron.

Answer the following question regarding the resting potential:   Indicate which Ions are present in the Intracellular and Extracellular fluids, and give their relative concentrations inside and outside the Neuron.