21. Muscles and neurons are activated by electrolyte activity between the extracellular fluid or interstitial fluid , and intracellular fluid. 22. Some of these sounds are reflected back off the spaces between interstitial fluid and soft tissue or bone. 23. Plasma, the major component in blood, communicates freely with interstitial fluid through pores and intercellular clefts in capillary endothelium. 24. This fluid component outside the cells includes the fluid between the cells ( interstitial fluid ), lymph and blood. 25. Deficiency of sodium and other electrolytes may lead to contracted interstitial fluid compartments, which may exacerbate the muscle cramping. 26. The blood plasma, interstitial fluid , and cytoplasm of cells in southern bluefin tuna are hyposmotic to the surrounding ocean water. 27. The microbubbles being too large in diameter, they stay confined in blood vessels and cannot extravasate towards the interstitial fluid . 28. Instead, it measures the " interstitial fluid " between cells, providing glucose readings different from those diabetics are used to. 29. The volume of ECF is typically 15 L, of which 12 L is interstitial fluid and 3 L is plasma. 30. When pressure is greater inside the lymphatic capillary, the cells adhere more closely, and lymph cannot escape back into interstitial fluid .
