extracellular fluid

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ex·tra·cel·lu·lar flu·id (ECF),

1. the interstitial fluid and the plasma, constituting about 20% of the weight of the body;
2. sometimes used to mean all fluid outside of cells, usually excluding transcellular fluid.

extracellular fluid (ECF)

the portion of the body fluid comprising the interstitial fluid and blood plasma. The adult body contains about 11.2 L of interstitial fluid, constituting about 16% of body weight, and about 2.8 L of plasma, constituting about 4% of body weight. Plasma and interstitial fluid are very similar chemically and, in conjunction with intracellular fluid, help control the movement of water and electrolytes throughout the body. Some of the important ionized components of extracellular fluid are protein, magnesium, potassium, chlorine, calcium, and certain sulfates.

extracellular fluid

Any fluid not contained within cells, which includes plasma, interstitial fluid and any fluid contained within a natural cavity (e.g., joint fluid, CSF, pleural fluid, pericardial fluid, etc.).

ex·tra·cel·lu·lar flu·id

(ECF) (eks'tră-sel'yŭ-lăr flū'id)
1. The interstitial fluid and the plasma, constituting about 20% of the weight of the body;
2. Sometimes used to mean all fluid outside of cells, but usually excluding transcellular fluid.

extracellular fluid

interstitial fluid and plasma, constituting ∼20% of the body weight


situated or occurring outside a cell or cells.

extracellular constituents
all of the constituents of the body outside the cells; include water, electrolytes, protein, glucose, enzymes, hormones.
extracellular fluid
all of the body fluid lying outside the cells. Includes intravascular fluid or plasma and the interstitial fluid. That part of the extracellular fluid that is in special cavities which have special characteristics, e.g. synovial fluid, urine, aqueous humor of eye, are called transcellular fluids.
extracellular matrix
the network of proteins and carbohydrates that surround a cell or fill the intercellular spaces.
extracellular space
References in periodicals archive ?
Renal secretion of renin activates the renin-angiotensin-aldosterone pathway, leading to hormonal regulation of water and sodium in the extracellular fluid, and to maintenance of blood pressure via this and vasoconstrictive mechanisms (see fig 1).
Although devices that continuously monitor glucose in extracellular fluids are routinely calibrated to blood glucose meters reporting values in plasma equivalents (9), there are no uniform analytical standards for calibrating these devices.
Recent clinical research suggests that impaired clearance of extracellular fluids in the brain and the resulting accumulation of neurotoxic proteins may play a significant role in the progression of Alzheimer's disease," said Alireza Minagar, M.
Cystatin C, a potent inhibitor of cysteine proteases, is found mainly in extracellular fluids such as blood, cerebrospinal fluid, and seminal plasma.

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