We know that the sum of the measures of any triangle is 180 degrees. Using the fact that angle A + angle B + angle C = 180 degrees, we can find the measure of angle C. angle A = 40. angle B = 60. angle C = we don't know.
When a depolarization wave reaches the synaptic end bulb of a presynaptic neuron, the NEXT event is diffusion of calcium ions into the cell A neurotransmitter that allows sodium ions to leak into a postsynaptic neuron causes
The action potential has several stages. 1  Depolarization: A stimulus starts the depolarization of the membrane. Depolarization, also referred to as the upswing, is caused when positively charged sodium ions rush into a nerve cell. 2  Repolarization.