Tonus
Encyclopedia
Tonus is the Latin equivalent of the English word tone. It is especially used to refer to:
- Muscle toneMuscle toneIn physiology, medicine, and anatomy, muscle tone is the continuous and passive partial contraction of the muscles, or the muscle’s resistance to passive stretch during resting state. It helps maintain posture, and it declines during REM sleep.-Purpose:Unconscious nerve impulses maintain the...
, the continuous and passive partial contraction of the muscles - Arterial tone, the continuous and passive partial contraction of the arterioleArterioleAn arteriole is a small diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries.Arterioles have muscular walls and are the primary site of vascular resistance...
s - TonicityTonicityTonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an external solution...
, the ability of a solution to cause water movement - The Pythagorean intervalPythagorean intervalIn musical tuning theory, a Pythagorean interval is a musical interval with frequency ratio equal to a power of two divided by a power of three, or vice versa...
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