Question

4 if a neuron is stimulated causing changes in the membrane potential to the point where voltage - gated $na^{+}$ channels open and begin depolarizing the cell, the neuron is said to have reached ________. multiple choice recruitment summation tetanus threshold

Explanation:

When a neuron is stimulated and the membrane potential changes to the point where voltage - gated \(Na^{+}\) channels open and depolarization begins, this critical point is known as the threshold. Recruitment refers to the activation of more neurons, summation is the adding up of synaptic potentials (temporal or spatial), and tetanus is a sustained muscle contraction (not relevant here).

Answer:

threshold