Question 1
Which of the following is the first response a neuron makes to a stimulus?
◦ 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.
Question 2
Which of the following may trigger a migraine headache?
◦ hormonal changes
◦ fluorescent lights
◦ certain foods
◦ weather changes
◦ all of these