Cardiovascular Physiology

Circulatory System

Pressure Gradient

Anatomy

Anatomy 2

Anatomy 3

Anatomy 4

Cardiac Muscle

EC Coupling

Modulation of Contraction

Action Potentials

Autorhythmic Cells

Modulation by Nervous Sys.

SA Node

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 Explained

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)