CARDIOVASCULAR SYSTEM:THE
HEART
| pericardium |
myocardium |
endocardium |
atria |
| ventricles |
R. AV valve |
L. AV valve |
aortic semilunar valve |
| pulmonary semilunar valve |
coronary artieries |
coronary veins |
pulmonary arteries |
| pulmonary veins |
cardiac muscle cells |
intercalated discs |
gap junctions contraction |
| autorhythmic |
SA node |
AV node |
|
| AV bundle |
purkinje fibers |
contractile cells |
conductile cells |
| ECG |
P wave |
QRS complex |
T wave |
| atrial depolarization |
atrial repolarization |
ventricle depolarization |
|
| ventricle repolarization |
systole |
diastole |
filling/ejection |
| lubb/dupp |
blood pressure |
heart rate |
stroke volume |
| neural regulation |
chemical regulation |
cardiac output |
|
- Name the coverings of the heart and give their functions. Describe the
structure and function of each of the three layers of the heart wall.
- Describe the structure and functions of the four heart chambers and both
pairs of valves.
- Trace the pathway of blood through the heart chambers and valves. Identify
blood flow through the vessels entering and exiting the heart.
- Describe the distribution of coronary and pulmonary circulation.
- Describe the structural and functional properties of cardiac muscle, and
explain how it differs from skeletal muscle.
- Briefly describe the process of cardiac muscle cell contraction.
- Name the components of the conduction system of the heart, and trace the
conduction pathway.Relate to an ECG.
- Draw a diagram of a normal electrocardiogram tracing; name the individual
waves and intervals, and indicate what each represents.
- Graph, on a single chart, the timing and events of the cardiac cycle. Include
blood pressure (systole/diastole) , blood movement (filling/ejection), heart
sounds, and relate them to ECG.
- Name and explain the effects of the various factors involved in regulation
of stroke volume and heart rate.
- Explain the role of the nervous system and chemicals in regulating cardiac
output. Use
this neural negative feedback loop template.
Professor
Thomas M. Lancraft
Human Anatomy
and Physiology Courses
at St. Petersburg College
St. Petersburg/Gibbs Campus
5/2008
