Question

in smooth muscle cells, a pacemaker potential differs from a greased potential because pacemaker potentials: (1) activate with the efflux of Na+(2) always reach threshold(3) activate with influx of Cl-(4) Barry in size​

Answer 1

Answer:

Pacemaker cells generate spontaneous action potentials that are also termed "slow response" action potentials because of their slower rate of depolarization. ... Another difference between cardiac and nerve and muscle action potentials is the role of calcium ions in depolarization.

Explanation:

please mark as BRAINEST