What is the correlation between depolarization and repolarization as well as contraction and relaxation of the heart?

What is depolarization and repolarization?

Which proteins helps in contraction and relaxation of muscles?

What is correlation between ionization energies and reactivity of element.

State the role of calcium ions in contraction and relaxation of muscles.

Name the following Muscles that function in contraction and relaxation of the heart.

Write short note on Role of calcium ion in contraction and relaxation of muscles.

The contraction and relaxation phase of a muscle constitute

State whether the following statements are true or false. Correct the false statement: Non- striated muscles bring about contraction and relaxation of heart.

What is the difference between myogenic and neurogenic heart?