Question

Does salt cause depolarization in myocytes if not what does?

Please explain both depolarization and repolarization definitions.

Answer 1

Salt or NaCl dissociates into sodium and chloride.So,it may cause depolarization but it alone is not responsiblw for dwpolarization in the myocytes, calcium influx is another major point in causing depolarization which is long lasting.

Sodium has less role in depolarization in myocytes than nerve cells, it is self-limiting and short lived in myocytes.

Depolarization is a phase of action potential in which membrane potential decreases from negative value to zero.That is it becomes more positive, after some 15mV, rate of depolarisation increases.

Repolarisation is the phase of action potential in which membrane potential falls towards the resting membrane potential and it occurs due to opening of voltage gated potassium channels.