Biology 449 - Animal Physiology October 15, 2008

Lecture 20 - Cardiovascular Physiology II

Heart

Electrical events of the heartbeat

Mechanical events of the heartbeat

Cardiac output

Heart rate

Stroke volume

Control of cardiac output

 

Terms to Know

Myogenic pacemaker
Sino-atrial (SA) node
Atrio-ventricular (AV) node
Bundle of His
Purkinje fibers

Systole
Diastole

Isovolemic contraction
Isovolemic relaxation
Ventricular ejection

Heart rate
Stroke volume
Cardiac output

Starling's Law of the Heart

Readings

Lectures 19-20:   Chapter 9, pages 359-365, 372-386, 399-402
Lectures 21-22: Chapter 9, pages 402-424