Anatomy and Physiology of Animals/Cardiovascular System/The Heart/Test Yourself Answers

1. Via what vessel does blood enter the heart from the body?
 * Blood enter the heart from the body via the cranial and caudal vena cavae.

2. Blood passing through the right atrioventricular valve passes into which chamber of the heart?
 * Into the right ventricle.

3. What is the function of the pulmonary valve?
 * The pulmonary valve prevents backflow of blood from the pulmonary artery into the right ventricle.

4. Does the pulmonary artery carry deoxygenated or oxygenated blood?
 * The pulmonary artery carries deoxygenated blood.

5. The walls of the heart are made of what tissue?
 * The walls of the heart are made of cardiac muscle.

6. Does the aorta carry deoxygenated or oxygenated blood?
 * The aorta carries oxygenated blood.