Trigger finger is caused by inflammation of the synovium, enlargement of the tendon, and thickening or narrowing of the sheath itself, usually in the area of the palm closest to the fingers. The name of the tendon sheath in this area is the âA1 pulleyâ.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  isotonic(Adjective) having the same osmotic pressure. 2  isotonic(Adjective) Having the same concentration of solutes as human blood. Use an isotonic saline solution in your neti pot to prevent irritation of your nasal passages. 3  isotonic(Adjective) having equal tension.
A solution is a mixture of two or more substances. It has a solvent and a solute. Depending on the concentrations there are different kinds of solutions and their applications differ too. Isotonic solutions have the same salt concentration as the surrounding blood cells. So an isotonic solution will have no effect on the surrounding cells. The cells will not gain or lose water if place in isotonic solution.