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单词 ECFV
释义

ECFV

英语百科

Extracellular fluid

Extracellular fluid content in humans

Extracellular fluid (ECF) or extracellular fluid volume (ECFV) usually denotes all body fluid outside the cells. The remainder is called intracellular fluid (ICF). The ECF and ICF are the two major fluid compartments.

In some animals, including mammals, the ECF can be divided into two major subcompartments, interstitial fluid and blood plasma, which make up at least 97%. The extracellular fluid also includes the transcellular fluid, which comprises about 2.5%. It also includes the acellular portion of lymph by the obligate logic of the outside-the-cells definition, although discussions of ECF usually treat lymph as negligible or implicitly lump it together with the interstitial fluid. One way of viewing the ECF is that it has "two components: plasma and lymph as a delivery system, and interstitial fluid for solute exchange."

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