Hi-Please explain what the refractory period is and when it happens-before or after relaxation? Thanks.© BrainMass Inc. brainmass.com June 20, 2018, 2:04 am ad1c9bdddf
The refractory period is the period of time during which an excitable cell, such as a muscle cell, cannot generate another action potential. It usually lasts about 1-2 msec.
It is divided into two parts, the absolute refractory period and the relative refractory period.