M5 Science - Midterm Review

What is the function of the septum in the heart?

• To pump blood

• To separate oxygen-rich and oxygen-poor blood

• To supply oxygen to cells

• To produce red blood cells

Which chamber of the heart receives deoxygenated blood from the body?

• Left atrium

• Right ventricle

• Left ventricle

• Right atrium

Blood is pumped from the left ventricle into which blood vessel?

• Pulmonary vein

• Aorta

• Vena cava

• Pulmonary artery

Which chamber pumps blood to the lungs?

• Left ventricle

• Right ventricle

• Left atrium

• Right atrium

The pulmonary vein carries blood:

• With low oxygen

• Toward the lungs

• Away from the lungs to the heart

• Directly into the vena cava

Which vessel returns oxygen-poor blood to the heart?

• Aorta

• Pulmonary vein

• Capillary

• Vena cava

Which valve controls blood flow from the right atrium to the right ventricle?

• Aortic valve

• Mitral valve

• Tricuspid valve

• Pulmonary valve

What is the role of heart valves?

• Increase oxygen in blood

• Open the arteries

• Prevent backward flow of blood

• Make blood cells

Which side of the heart handles oxygen-rich blood?

• Right

• Left

• Bottom

• Both

What causes the 'lub-dub' sound of the heart?

• Blood entering veins

• Valves closing

• Arteries expanding

• Muscles contracting