the same for all fibres in a nerve trunk, such as the sciatic nerve.

directly proportional to the length of the fibre.

highest for fibres signalling pain.

inversely proportional to the diameter of the fibre.

slower for unmyelinated than for myelinated fibres of the same diameter.

All be of an even size

Can be grouped according to size as belonging to different neurons

Every one will be of a different size

Will vary in size randomly as a function of ambient conditions

Will vary in size as you vary the stimulus conditions

causes hyperpolarization of the resting membrane potential.

causes repolarization of the resting membrane potential.

causes the Na⁺/K⁺ pump to become active.

causes a prolonged refractory period.

does not open enough voltage-gated channels.

caused by the passive leakage of K⁺ out of the cell at rest.

produced by the high concentration of Cl^- ions inside the cell.

the result of the high Na⁺ permeability at rest.

caused by the passive leakage of Na⁺ out of the cell.

produced by high concentrations of Cl^- ions inside the cell.

These red blood cells have shrunken in response to a hypotonic external solution

These red blood cells have swollen in response to a hypertonic external solution

These red blood cells have shrunken in response to a hypertonic external solution

These red blood cells have swollen in response to a hypotonic external solution

These red blood cells have been placed in an isotonic solution