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Depiction of a red blood cell in an isotonic solution. A solution is isotonic when its effective osmole concentration is the same as that of another solution. In biology, the solutions on either side of a cell membrane are isotonic if the concentration of solutes outside the cell is equal to the concentration of solutes inside the cell.
The term isotonic may refer to: Isotonic (exercise physiology), a type of muscle contraction; Isotonic regression, a type of numerical analysis; Isotonic, one of three types of tonicity that characterize a solution's concentration; see Tonicity#Isotonicity; A sports drink that contains similar concentrations of salt and sugar to the human body
Osmoconformers are marine organisms that maintain an internal environment which is isotonic to their external environment. [1] This means that the osmotic pressure of the organism's cells is equal to the osmotic pressure of their surrounding environment.
Isotonic contractions differ from isokinetic contractions in that in isokinetic contractions the muscle speed remains constant. While superficially identical, as the muscle's force changes via the length-tension relationship during a contraction, an isotonic contraction will keep force constant while velocity changes, but an isokinetic ...
Isotonic hyponatremia is a form of hyponatremia with mOsm measured between 280 and 295. It can be associated with pseudohyponatremia, or with isotonic infusion of glucose or mannitol . [ 1 ]
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
Tonicity concept related to the transport of water towards the more concentrated aqueous solution (osmotic transport): In isotonic solutions, water flows equally into and out of the cell (equilibrium). In hypertonic solutions water flows out of the cell and the cell shrinks (plasmolysis).
Tetanic contraction can exist in a variety of states, including isotonic and isometric forms—for example, lifting a heavy box off the floor is isotonic, but holding it at the elevated position is isometric. Isotonic contractions place muscles in a constant tension but the muscle length changes, while isometric contractions hold a constant ...