Anatomy of the Heart

Where is the heart located within the thoracic cavity?

• Right lung

• Left lung

• Mediastinum

What proportion of the heart is located on the left side?

• 1/4

• 1/3

• 2/3

• 3/4

What is the lower border of the heart called?

• Base

• Apex

• Sulcus

• Auricle

Which layer of the heart is the innermost?

• Pericardium

• Mesocardium

• Endocardium

• Myocardium

How is the pericardium divided?

• Into two layers

• Into three layers

• Into four layers

• Into five layers

What structure divides the right and left ventricles of the heart?

• Interventricular septum

• Interatrial septum

• Atrioventricular septum

• Mesocardium

Which valves allow blood to move from the atria into the ventricles?

• Semilunar valves

• Atrioventricular valves

• Tricuspid valves

• Pulmonary valves

What is the function of atria in the heart?

• Pump blood into the systemic circulation

• Pump blood into the pulmonary circulation

• Receive blood from the systemic circulation

• Receive blood from the pulmonary circulation

Which valve is found between the right atrium and right ventricle?

• Mitral (Bivalve) valve

• Aortic valve

• Pulmonary valve

• Tricuspid valve

What divides the atria from the ventricles?

• Interventricular septum

• Interatrial septum

• Atrioventricular septum

• Sulcus