Explain in your own words with illustrations the action potential in a cardiac muscle B. Explain in your own words with illustrations the Conduction System. The Action Potential of a Cardiac Muscle

The Action Potential of a Cardiac Muscle

The action potential of a cardiac muscle is an important phenomenon that helps maintain the heart’s normal functioning. This action potential refers to the electrical activity that occurs in the heart muscles when it contracts and relaxes. The action potential is generated by the movement of ions across the cell membrane, which creates an electrical signal that is then conducted throughout the heart. The action potential is made up of five distinct phases; the resting phase, the depolarization phase, the repolarization phase, the plateau phase, and the repolarization phase. The resting phase is the first step in the action potential and occurs when the cell membrane is in a state of equilibrium. This means that there is an equal concentration of ions on both sides of the cell membrane. In the depolarization phase, the concentration of ions on the inside of the cell membrane becomes greater than the concentration on the outside (Kupfer et al., 2020). This imbalance in the ion concentration causes an electrical signal to be generated, which is then propagated throughout the heart. The repolarization phase is the second step in the action potential and occurs when the. Cont…