1 Sodium (Na+) : Sodium is a vital electrolyte for muscle function, neuron function, blood pressure regulation, and blood volume regulation. 2  Over 99% of the sodium ions passing through the kidneys are reabsorbed into the blood from tubular filtrate.
splice (plural splices) (nautical) A junction or joining of ropes made by splicing them together. (electrical) The electrical and mechanical connection between two pieces of wire or cable. (cricket) That part of a bat where the handle joins the blade. Bonding or joining of overlapping materials.
Spline (mathematics) A quadratic spline composed of six polynomial segments. Between point 0 and point 1 a straight line. Between point 1 and point 2 a parabola with second derivative = 4. Between point 2 and point 3 a parabola with second derivative = â2.