The Heart and circulation Quiz

Which of the following is the correct sequence of blood flow through the circulatory system?

• Arteries → Veins → Capillaries

• eins → Capillaries → Arteries

• Capillaries → Veins → Arteries

• Arteries → Capillaries → Veins

Which chamber of the heart pumps oxygenated blood to the rest of the body?

• Left atrium

• Left ventricle

• Right atrium

• Right ventricle

Which of the following is responsible for carrying oxygen in the blood?

• Red blood cells

• White blood cells

• Platelets

• Plasma

Tags

NGSS.HS-LS1-7

Which blood vessel carries oxygenated blood from the lungs to the heart?

• Pulmonary artery

• Pulmonary vein

• Aorta

• Vena cava

Which of the following valves prevents the backflow of blood from the left ventricle into the left atrium?

• Aortic valve

• Pulmonary valve

• Tricuspid valve

• Mitral valve

What is the purpose of the valves in the heart?

• To regulate blood pressure

• To ensure one-way blood flow

• To transport oxygen to body tissues

• To filter waste products from the blood

Which blood vessels have the thinnest walls to allow for the exchange of substances between blood and body tissues?

• Arteries

• Veins

• Capillaries

• Venules

What is the function of the coronary arteries?

• To supply oxygen-rich blood to the heart muscle

• To carry deoxygenated blood away from the heart

• To exchange gases between the lungs and the bloodstream

• To filter waste products from the blood

What is the average resting heart rate for a healthy adult?

• A. 30-40 beats per minute

• B. 60-80 beats per minute

• C. 100-120 beats per minute

• D. 140-160 beats per minute

What causes the lub-dub sound heard during a heartbeat?

• A. Contraction of the atria and ventricles

• B. Opening and closing of the heart valves

• C. Relaxation of the heart chambers

• D. Blood flowing through the blood vessels