کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2743464 1148673 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Osmolarity and partitioning of fluids
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی بیهوشی و پزشکی درد
پیش نمایش صفحه اول مقاله
Osmolarity and partitioning of fluids
چکیده انگلیسی

Substances move down concentration gradients. When fluids are mixed together, they diffuse down their own concentration gradients and come to a dynamic equilibrium such that the concentrations of the various substances in all parts of the medium are the same. When two solutions are separated by a semipermeable membrane (i.e. permeable to the solvent (water) but not the solutes), water moves down its concentration gradient such that the osmotic pressure on both sides of the membrane is the same. Cell membranes are effectively semipermeable membranes. Water passes freely but the movement of solutes across the membrane, particularly charged molecules, is usually via a specific carrier protein. This may sometimes involve the expenditure of energy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Anaesthesia & Intensive Care Medicine - Volume 10, Issue 11, November 2009, Pages 562–565
نویسندگان
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