Urología General Flashcards
1
Q
¿Qué es la ley de Poiseuille?
A
The blood flow (Q) in the renal artery, as in other vascular beds, is directly proportional to the perfusion pressure (dP) and inversely proportional to the flow resistance (R).
According to what is known in
physiology as Poiseuille’s law, R is directly proportional to the length of the stenotic region and inversely proportional to the fourth power of the vascular radius.
Thus, the double radius reduction of the patent vessel causes an eight-fold increase in flow resistance, which generates the perfusion pressure increase in this area.
https://people.vts.su.ac.rs/~ognjen/Inz_fizika2/Physics%20Principles%20with%20Applications,%20Global%20Edition%20(Douglas%20Giancoli)%20(z-lib.org).pdf (página 280)
