Understanding Heart and Heart Rate

What is the primary function of the heart in the human body?

• To produce hormones

• To pump blood throughout the body

• To digest food

• To filter waste from the blood

Which part of the heart is responsible for receiving oxygen-poor blood from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What is the average resting heart rate for a healthy middle school student?

• 30-40 beats per minute

• 60-100 beats per minute

• 120-150 beats per minute

• 180-200 beats per minute

Which blood vessels carry blood away from the heart?

• Veins

• Arteries

• Capillaries

• Lymph vessels

What is the term for the rhythmic expansion and contraction of an artery as blood is pumped through it?

• Pulse

• Blood pressure

• Heartbeat

• Respiration

If a person's heart rate is 75 beats per minute, how many times does their heart beat in 10 minutes?

• 450

• 750

• 150

• 600

Which of the following is NOT a factor that can affect heart rate?

• Exercise

• Stress

• Temperature

• Hair color

What is the name of the valve that prevents backflow of blood from the left ventricle to the left atrium?

• Tricuspid valve

• Mitral valve

• Pulmonary valve

• Aortic valve