Cardiovascular Physiology
Circulatory System
Modulation of Contraction
Action Potentials
Autorhythmic Cells
Modulation by Nervous Sys.
Electrical Conduction
Einthoven Triangle
Leads
• 1. Left arm (+); Right arm (-); Left leg (gr)** • 2. Left arm (gr); Right arm (-); Left leg (+) • 3. Left arm (-); Right arm (gr); Left leg (+)
ECG v. Myocardial AP
Mechanical Events
Putting It All Together
Cardiac Output
• EDV-ESV=Stroke Volume (End Diastolic Volume-End Systolic Volume) • Cardiac Output= HR x Stroke Volume
(Heart Rate)
Blood Pressure Cuff
MAP
• Mean Arterial Pressure • MAP=Diastolic P + [ Systolic Pressure-
Diastolic Pressure](1/3)