Resistance, pressure, flow Flashcards
1
Q
dP
A
Q*R
Similar to V=IR
2
Q
Resistance
A
8n(viscosity)(length)/(pi*R^4)
3
Q
In series
A
R1+ R2+ R3
4
Q
In paralelle
A
1/Rtotal = 1/ R1 + 1/R2…
5
Q
Viscosity
A
Mostly depends on hematocrit;
- increased in polycythemia, hyperproteinemic state (MM), hereditary spherocytosis.
- decreased in anemia
6
Q
Peripheral resistance determined by
A
Arterioles account for most of it;
they also regulate capillary flow.
