Potassium is important in nerve function by allowing muscle contraction of all nerve impulses sent by action potentials. Potassium also influences osmotic balance between cells and the interstitial fluid. Potassium works with sodium to maintain the body's water balance and significant chan... [More]

Sodium is in extracellular fluids and tissues in humans. These fluids, such as blood plasma and extracellular fluids carry out transport functions for nutrients. Sodium is also in seawater as sodium chloride and completely unrefined, the natural minerals still remain.  ... [More]

Movement represents the integrated functioning of many systems within the human body, primarily the muscular, articular (joint), and nervous systems. These systems form an interdependent triad which, when operating correctly, allows for optimum structural alignment, neuromuscular efficiency (coo... [More]