1 / 7

Ohm's Law: I=V/R

P. 2. Q. Ohm's Law: I=V/R. I = current (electrical flow). V= voltage (electrical potential energy). R = resistance to flow. For fluid dynamics: Q=P/R. Q = blood flow. P = pressure (potential energy).

olga-marsh
Télécharger la présentation

Ohm's Law: I=V/R

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. P 2 Q Ohm's Law: I=V/R I = current (electrical flow) V= voltage (electrical potential energy) R = resistance to flow For fluid dynamics: Q=P/R Q = blood flow P = pressure (potential energy) R = resistance to flow R P1

  2. Zone 1 PA>Pa>Pv Zone 2 Pa>PA>Pv Distance Zone 3 Pa>Pv>PA Blood Flow Pulmonary Circulation Arterial (Pa) Alveolar (PA) Venous (Pv)

  3. 1 2 3 Assumes PA=0 mmHg

  4. Pulmonary Artery Pulmonary Circulation 60 Pulmonary Arterial 50 Catheter Tracing 40 mmHg 30 20 10 0 Left Atrial Pressure Tracing Pulmonary Capillaries Left Atrium Pulmonary Vein

  5. Distal component 100 Bi-exponential decay of pulmonary arterial pressure PCWP Pressure (mmHg) 10 Proximal component 1 0 1 2 3 Time (seconds)

  6. Venule Arteriole Interstitial Hydrostatic P=1 Pnet=(Pi-Po)+(:o-:i) 17 mmHg Oncotic P=25 37 mmHg

  7. Zone 1 PA>Pa>Pv Zone 2 Pa>PA>Pv Zone 3 Pa>Pv>PA Pulmonary Circulation Arterial (Pa) Alveolar (PA) Venous (Pv)

More Related