J Postgrad Med Close
 

Illustration of two compartment model showing a column of blood of volume Vb and resistivity pb along axis of a uniform cylinder of body tissue of volume Vt and resistivity pt. Flow of blood during systole increases the volume of blood column as well as total volume of the cylinder (Vo) by dVb. Volume of the tissue Vt, resistivity of the tissue ?t, and rositivity of the blood ?b are assumed to remain unchanged during systole.

 Illustration of two compartment model showing a column of blood of volume Vb and resistivity pb along axis of a uniform cylinder of body tissue of volume Vt and resistivity pt. Flow of blood during systole increases the volume of blood column as well as total volume of the cylinder (Vo) by dVb. Volume of the tissue Vt, resistivity of the tissue ?t, and rositivity of the blood ?b are assumed to remain unchanged during systole.