tonicity

[to-nis´ĭ-te]

the state of tissue tone or tension; in body fluid physiology, the effective osmotic pressure equivalent.

to·nic·i·ty

(tō-nis'i-tē),

1. A state of normal tension of the tissues by virtue of which the parts are kept in shape, alert, and ready to function in response to a suitable stimulus. In the case of muscle, it refers to a state of continuous activity or tension beyond that related to the physical properties; that is, it is active resistance to stretch; in skeletal muscle it is dependent upon the efferent innervation.
See also: isotonicity. Synonym(s): tonus

2. The osmotic pressure or tension of a solution, usually relative to that of blood.
See also: isotonicity.

[G. tonos, tone]

Farlex Partner Medical Dictionary © Farlex 2012

tonicity

(tō-nĭs′ĭ-tē)

n. pl. tonici·ties

1. Normal firmness or functional readiness in body tissues or organs.

2. The sustained partial contraction of resting or relaxed muscles.

to·nic·i·ty

(tō-nis'i-tē)

1. A state of normal tension of the tissues by virtue of which the parts are kept in shape, alert, and ready to function in response to a suitable stimulus. In the case of muscle, it refers to a state of continuous activity or tension beyond that related to the physical properties, i.e., its active resistance to stretch; in skeletal muscle, it is dependent on the efferent innervation.
Synonym(s): tonus.

2. The osmotic pressure or tension of a solution, usually relative to that of blood.
See also: isotonicity

[G. tonos, tone]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

solution, hypertonic

A solution with an osmotic pressure greater than that of an isotonic solution. Hypertonic ophthalmic solutions cause some stinging when instilled. Examples: sodium chloride 5%: when applied to an oedematous cornea this solution reduces oedema by drawing water from it; sulfacetamide sodium 30%; glycerol (or glycerin), at a dose of 1-1.5 g/kg body weight given as a solution with water or other liquid, which draws water from the eye into the blood and thereby reduces the intraocular pressure. Syn. hyperosmotic agent. See hyperosmotic agent; osmotic pressure; physiological saline.
hypotonic s. A solution with an osmotic pressure lower than that of an isotonic solution. Hypotonic ophthalmic solutions generally cause less irritation than hypertonic ones. See osmotic pressure.
isotonic s. A solution with an osmotic pressure equal to that on the other side of a semipermeable membrane. Example: sodium chloride 0.9% is considered to be approximately isotonic with the tears. See osmotic pressure; physio-logical saline.

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References in periodicals archive

8 shows significant difference in terms of uterine tonicity in Group SI compared with Group NSI.

PERI-OPERATIVE SYNTOCINON INFUSION IN LSCS

Decellularizing agent Concentration Tonicity DAPI Triton X-100 0.1% Hypo + Iso + Hyper + 0.25% Hypo + Iso + Hyper + 0.5% Hypo + Iso + Hyper + SDS 0.1% Hypo + Iso + Hyper + 0.25% Hypo + Iso + Hyper + 0.5% Hypo [+ or -] Iso - Hyper - Trypsin-EDTA 0.1% Hypo + Iso + Hyper + 0.25% Hypo - Iso + Hyper + 0.5% Hypo - Iso - Hyper - Table 3: Reverse transcript PCR primers.

Generation of Femtosecond Laser-Cut Decellularized Corneal Lenticule Using Hypotonic Trypsin-EDTA Solution for Corneal Tissue Engineering

Solutions with high osmolarity may worsen the diarrhea because the resulting increase in the intraluminal tonicity may cause hypersecretion of water and electrolytes; which is even more pronounced in animals with damaged intestinal villi (SMITH & BERCHTOLD, 2014).

Enteral fluid therapy in neonatal calves and features of commercially available electrolyte solutions in Brazil/ Hidratacao enteral em bezerros neonatos e caracteristicas das solucoes eletroliticas disponiveis comercialmente no Brasil

satisfaction Abdominal Increase the Lying supine, inhale deeply breathing tonicity of the deep using abdominal muscles to transverse muscles expand the abdomen.

Puerperas' knowledge regarding postpartum exercises in a tertiary hospital in the Capricorn District of Limpopo Province, South Africa

The reason being that its hypo tonicity causes rapid lysis of the cells and increases the inflammation on replantation.11 Furthermore, if the tooth is kept in dry storage medium before replantation maintenance of vitality of the cells is impossible.12

KNOWLEDGE OF DENTISTS REGARDING TREATMENT OF AVULSED TEETH IN KARACHI

In several weeks, the uterus regains its normal tonicity, the suture is absorbed, and the anchor retained as seen in women undergoing conventional interval insertion.

Intra-cesarean insertion and fixation of frameless intrauterine devices/Cercevesiz rahim ici araclarin sezaryen esnasinda uygulanimi ve fiksasyonu

found significant reduction rate of tonicity in trunk and upper limbs in patients receiving traditional Swedish massage.12

The effect of deep cross friction massage on spasticity of children with cerebral palsy: A double-blind randomised controlled trial

Rettig et al., "Erythrocyte adhesion is modified by alterations in cellular tonicity and volume," British Journal of Haematology, vol.

Sickle Cell Beta-Plus Thalassemia with Subcapsular Hematoma of the Spleen

It appears to act as a lubricant, and because it has the same tonicity, or concentration, of the tissue it does not affect the flow of electrolytes or water.

Common vocal remedies: what are they and do they really work?

During phase 2 (dwell), the tonicity of the solution pulls wastes and excess fluid from the capillary blood through the lining of the semi-permeable peritoneal membrane into the dialysate (Headley, 2014; Krediet, 2013; Saxena, 2014).

Peritoneal dialysis: understanding, educating, and adhering to standards