From Wikipedia, the free encyclopedia. Interstitial fluid or tissue fluid is a solution that bathes and surrounds the tissue cells of multicellular animals. It is the main component of the extracellular fluid, which also includes plasma and transcellular fluid.The interstitial fluid is found in the interstices-the spaces between cells (also known as the tissue spaces).t is the main component of the extracellular fluid, which also includes plasma and transcellular fluid. The interstitial fluid is found in the interstices-the spaces between cells (also known as the tissue spaces).
Cardiac Preload. Preload can be defined as the initial stretching of the cardiac myocytes prior to contraction. Preload, therefore, is related to muscule sarcomere length.ardiac Preload. Preload can be defined as the initial stretching of the cardiac myocytes prior to contraction. Preload, therefore, is related to muscule sarcomere length.
Paroxysmal supraventricular tachycardia (PSVT) Paroxysmal supraventricular tachycardia (PSVT) is episodes of rapid heart rate that start in a part of the heart above the ventricles. Paroxysmal means from time to time. Normally, the chambers of the heart (atria and ventricles) contract in a coordinated manner.