This more specialised Lecture 2 is concerned with blood flow in vessels of diameter less than 0.1 mm (that is, 100 microns), and especially with flow in the arterioles, capillaries and venules, with diameters ranging from at most 50 microns down to values as low as 5 microns. This whole peripheral part of the circulation, called the microcirculation, was seen already in Lecture 1, section 6 to be where most of the drop in mean pressure between the arteries and veins, amounting to between 100 and 200 mb in normal human beings, occurs.
KeywordsPressure Drop Apparent Viscosity Pulmonary Perfusion Peripheral Perfusion Axial Concentration
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