The Heart Practice Exam

What are the three main components of the circulatory system?

• Heart, lungs, and blood

• Heart, blood vessels, and blood

• Blood vessels, arteries, and veins

• Heart, capillaries, and plasma

Which layer of the heart contains the cardiac muscle?

• Pericardium

• Myocardium

• Endocardium

• Epicardium

What is the primary function of the right side of the heart?

• To pump oxygenated blood to the body

• To pump deoxygenated blood to the lungs

• To receive blood from the pulmonary vein

• To distribute blood to the coronary arteries

Through which valve does blood pass when moving from the right atrium to the right ventricle?

• Mitral valve

• Aortic valve

• Tricuspid valve

• Pulmonary valve

What is the phase called when the heart is relaxing?

• Systole

• Diastole

• Conduction

• Perfusion

Which blood vessels are responsible for carrying blood away from the heart?

• Veins

• Capillaries

• Arteries

• Venules

What is the primary function of white blood cells (leukocytes)?

• Carrying oxygen throughout the body

• Defending against foreign substances

What is the liquid portion of blood called?

• Serum

• Platelets

• Plasma

• Lymph

What blood pressure reading is considered hypertensive according to the text?

• 120/80 or higher

• 130/80 or higher

• 140/90 or higher

• 150/90 or higher

Which condition occurs when the coronary arteries narrow and reduce blood flow to the heart muscle?

• Hypertension

• Congestive heart failure

• Coronary artery disease

• Deep vein thrombosis