Heart Layers and Heart Parts

Which structure is depicted by #1?

• superior vena cava

• inferior vena cava

• aorta

• pulmonary artery

Which structure is depicted by #5?

• superior vena cava

• inferior vena cava

• aorta

• pulmonary artery

Which structure is depicted by #7?

• right atrium

• left atrium

• right ventricle

• left ventricle

Which structure is depicted by #2?

• right atrium

• left atrium

• right ventricle

• left ventricle

What structure is depicted by N?

• pulmonary veins

• pulmonary trunk

• aorta

• superior vena cava

What structure is depicted by E?

• tricuspid valve

• bicuspid valve

• aortic valve

• pulmonary valve

The mitral and tricuspid valves are also called _____________ valves.

• semilunar

• bicuspid

• aortic

• atrioventricular

What layer of the heart is composed of cardiac muscle tissue?

• endocardium

• myocardium

• epicardium

What layer of the heart is indicated by structure #1?

• endocardium

• myocardium

• epicardium

• visceral pericardium

What layer of the heart is indicated by structure #2?

• endocardium

• myocardium

• epicardium

• visceral pericardium