Repolarization begins as: Group of answer choices sodium ions follow their electrochemical gradient into the cell. voltage-gated potassium ion channels begin to close. voltage-gated sodium ion channels activate. voltage-gated potassium ion channels activate.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.