Physiology 2130 Lecture Notes - Lecture 2: Resting Potential, Multipolar Neuron

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Anita Woods

Document Summary

Tutorial 2 clicker questions: the depolarization phase of an action potential is caused by the. A: the membrane potential will be more negative (hyperpolarized) A: the action potential will travel toward the axon terminals and the cell body. Explanation - the configuration of the voltage-gated sodium channel determines which areas of the axon will experience an action potential. Since the neuron is at rest, the activation gate of the voltage-gated sodium channel is closed and the inactivation gate is open all along the axon membrane. A threshold stimulus would cause action potentials to develop at the point of stimulus.