Question 1
What bridges the gap between a sending and a receiving neuron?
◦ threshold value
◦ action potential
◦ transmitter substance
◦ neurohormone
◦ neuromodulator
Question 2
What happens immediately following the closing of the sodium gates during an action potential?
◦ Sodium ions enter the cell.
◦ Sodium ions leave the cell.
◦ Potassium ions enter the cell.
◦ Potassium ions leave the cell.
◦ Calcium ions leave the cell.