Structure of the Heart
Exercise #40
Complete pages 327-335 + drawing
This lab is to allow you to become familiar with the location and anatomy of the heart. Look at and label with sticky paper the full size
models, and the sheep heart. Both will be on the practical.
THINGS YOU SHOULD KNOW FOR THE PRACTICAL:
Be able identify and trace the flow of blood through the heart, noting the following structures
|
Atria (right & left) |
aorta |
antrioventricular valves |
|
septum |
superior vena cava |
bicuspid (mitral) valve |
|
Ventricles (right & left) |
inferior vena cava |
tricuspid valve |
|
auricles |
pulmonary arteries |
semilunar valves (pulmonary & aortic) |
|
epicardium |
pulmonary trunk |
chordae tendineate |
|
endocardium |
papillary muscle |
|
|
myocardium |
||
|
pericardium layers |
Know which side of the heart carries oxygenated blood? deoxygenated blood? Compare the structure of antrioventricular and semilunar valves. How does each function to prevent the backflow of blood? Know the meaning of the terms Pulmonary circuit, Systemic circuit, Coronary circuit Know the location of the veins & arteries of the coronary circulation, including the following:
|
left coronary artery |
right coronary artery |
great cardiac vein |
|
anterior interventricular artery |
marginal artery |
middle cardiac vein |
|
circumflex artery |
posterior interventricular artery |
small cardiac vein |
|
coronary sinus |
- Histology. Draw the following slides on the back of page 332
Your slides should include:
|
Cardiac muscle |
|
Pukinje fibers Contractile myocardium Intercalated discs |
