What is meant by autorhythmicity?

Autorhythmicity refers to the intrinsic ability of certain cells, particularly in the heart, to generate rhythmic electrical impulses without external stimulation. This characteristic is primarily seen in pacemaker cells, which spontaneously depolarize and initiate action potentials, leading to coordinated heartbeats. Autorhythmicity is crucial for maintaining a consistent heart rate and ensuring effective blood circulation throughout the body.