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.
Atrial premature complexes (APCs) are a common kind of heart arrhythmia, or heartbeat that is beating too fast, too slow, or irregular. Another name for atrial premature complexes is premature atrial contractions. One of the most common symptoms of APCs is heart palpitations or unusual awareness of your heartbeats. Palpitations are heartbeats that are extra fast, extra slow, or irregularly timed. APCs occur when a beat of your heart occurs early in the heart cycle.