Review_Quiz

What is the main function of the heart in the cardiovascular system?

• To filter blood

• To pump blood throughout the body

• To produce blood cells

• To store oxygen

Which chamber of the heart receives oxygenated blood from the lungs?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

What is the primary component of red blood cells that carries oxygen?

• Hemoglobin

• Plasma

• Platelets

• White blood cells

Which of the following is NOT a function of the lymphatic system?

• Transporting dietary fats

• Producing red blood cells

• Removing excess fluid from tissues

• Defending against pathogens

Which disease is characterized by the narrowing of the coronary arteries?

• Hypertension

• Atherosclerosis

• Anemia

• Leukemia

Fill in the blank: The _______ valve prevents backflow of blood from the left ventricle to the left atrium.

• Tricuspid

• Mitral

• Pulmonary

• Aortic

What is the liquid component of blood called?

• Plasma

• Serum

• Hemoglobin

• Lymph

Which part of the heart is responsible for initiating the heartbeat?

• Atrioventricular node

• Sinoatrial node

• Bundle of His

• Purkinje fibers

What is the primary function of white blood cells?

• Carrying oxygen

• Clotting blood

• Fighting infections

• Transporting nutrients

Which of the following is a common symptom of cardiovascular disease?

• Joint pain

• Shortness of breath

• Skin rash

• Hair loss