Ch 3.2 - Heart structure & its Functions

What is the function of the heart?

• To deliver oxygen and nutrients to the body

• To remove waste products from the body

• To regulate body temperature

• To produce hormones

How many chambers does the heart have?

• Two

• Five

• Three

• Four

Where does the right atrium receive blood from?

• Lungs

• Body tissues

• Pulmonary artery

• Pulmonary vein

What is the function of the ventricles?

• To receive blood from the lungs

• To pump blood over greater distances

• To deliver oxygen to the body's tissues

• To prevent blood from flowing backwards

What is the purpose of the valves?

• To stop blood from back flow

• To transport blood to the lungs

• To deliver nutrients to the working muscles

• To carry oxygenated blood throughout the body

Which blood vessel delivers deoxygenated blood from the body's tissues to the right atrium?

• Pulmonary artery

• Pulmonary vein

• Vena cava

• Aorta

Where does the pulmonary artery transport blood to?

• Left ventricle

• Lungs

• Body tissues

• Right atrium

What happens when the ventricle contracts?

• forcing the blood through the aorta to the body

• Forcing the blood to the atriums

• Forcing the blood through the vena cava

• blood build up in the heart

Which artery carries oxygenated blood to the body's tissues?

• Aorta

• Pulmonary artery

• Pulmonary vein

• Vena cava

What circuit when the heart pumps blood to the lungs and back to the heart?

• Alveoli

• Systemic circuit

• Cardiac cycle

• Pulmonary circuit