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
1 when the action potential arrives at the synaptic terminal, the resulting depolarization results in the activation of voltage-gated Ca2+ channels, which are located near active zones.2  neurotransmitter release is not guaranteed with every action potential. when the action potential arrives at the synaptic terminal, the resulting depolarization results in the activation of voltage-gated Ca2+ channels, which are located near active zones.