The layer of the heart wall composed of cardiac muscle:

• endocardium

• myocardium

• epicardium

• pericardium

Which area of the heart receives blood from the systemic veins:

• right ventricle

• left ventricle

• right atrium

• left atrium

The right AV valve is known as the:

• aortic semilunar valve

• tricuspid valve

• biscupid/mitral valve

• pulmonary semilunar valve

Pulmonary veins:

• transport oxygenated blood to the lungs

• transport blood rich in carbon dioxide to the lungs

• transport oxygenated blood to the heart

• transport blood to the right atrium of the heart

The tricuspid valve is located between the:

• right atrium and left atrium

• right atrium and right ventricle

• left ventricle and pulmonary artery

• left ventricle and aorta

The superior vena cava empties:

• oxygenated blood into the left atrium

• oxygenated blood into the left ventricle

• deoxygenated blood into the right atrium

• deoxygenated blood into the right ventricle

Which of the following blood vessels carries oxygenated blood:

• superior vena cava

• pulmonary artery

• inferior vena cava

• pulmonary veins

The sinoatrial node (pacemaker) is located in the:

• aorta

• right atrium

• left atrium

• right ventricle

The path of blood flow within the systemic vascular system is:

• arterioles, arteries, capillary beds, venules, veins

• arterioles, arteries, capillary beds, veins, venules

• arteries, arterioles, capillary beds, venules, veins

• arteries, arterioles, capillary beds, veins, venules

Veins:

• carry blood away from the heart

• branch into smaller vessels called arterioles

• transport oxygen-rich blood

• often have valves to prevent the back flow of blood