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.
As a result, nothing happens because the concentration of water solutes outside of the cell are equal to the solutes within the cell. In the same respect, the water concentration on both sides is also equivalent. Isotonic solutions are commonly used in medical situations.For example, hospitals use isotonic saline solutions for IVs for patients. If you clean contact lenses, you use a isotonic saline solution to clean the protein from your lenses.ypertonic Solutions. Hypertonic solutions are different from isotonic solutions in that cells often lose water. Cells have a water concentration that is greater inside the cell rather than outside of the cell. Furthermore, the solutes outside of the cell are greater than the solutes inside of the cell.