Cardiac Muscle Definition

Cardiac Muscle Sentence Examples

• Units of the sarcoplasmic reticulum surround the contractile fibrils in the interior of cardiac muscle cells.

• The systole is not altered in length, but the diastole is very much prolonged, and since this is the period not only of cardiac rest but also of cardiac "feeding" - the coronary vessels being compressed and occluded during systole - the result is greatly to benefit the nutrition of the cardiac muscle.

• Thereafter follows the most important effect of the drug, which is a direct stimulation of the cardiac muscle.

• This can be proved to occur in a heart so embryonic that no nerves can be recognized in it, and in portions of cardiac muscle that contain neither nervecells nor nerve-fibres.

• The arrival of an action potential in the interior of the cardiac muscle cell causes the release of calcium ions from the sarcoplasmic reticulum.