How many chambers does the heart have?

• Five

• Four

• Two

• Three

What separates the right and left sides of the heart?

• Aorta

• Septum

• Valves

• Coronary arteries

Which chamber of the heart has the thickest walls?

• Right ventricle

• Left ventricle

• Left atrium

• Right atrium

What is the function of the tricuspid valve?

• Prevent backflow into the pulmonary artery

• Prevent backflow into the left atrium

• Prevent backflow into the right atrium

• Prevent backflow into the aorta

What type of muscle tissue is found in the heart?

• Striated muscle

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

What is the role of coronary arteries?

• Supply oxygen to the muscles

• Supply oxygen to the brain

• Supply oxygen to the heart

• Supply oxygen to the lungs

What controls the rhythm of the heart?

• Nerves

• Natural pacemaker

• Hormones

• Blood pressure

Tags

NGSS.HS-LS1-3

What happens to the heart rate during physical activity?

• It decreases

• It stops

• It increases

• It remains the same

Tags

NGSS.HS-LS1-3

What is the function of the aortic valve?

• Prevent backflow into the left ventricle

• Prevent backflow into the right atrium

• Prevent backflow into the right ventricle

• Prevent backflow into the pulmonary artery

What is the normal resting heart rate for adults?

• 80 beats per minute

• 50 beats per minute

• 70 beats per minute

• 60 beats per minute

Tags

NGSS.HS-LS1-3