PBS

How many oxygenated chambers are in the human heart?

• one

• two

• three

• four

Arteries carry blood _____ the heart.

• toward

• away from

• near

• outside

What is the purpose of valves in the heart?

• to push blood forward

• to prevent blood from flowing backwards

• to carry oxygenated blood to the body

• to carry deoxygenated blood to the heart

The right side of the heart contains _____ blood and the left side of the heart contains _____ blood.

• oxygenated; deoxygenated

• deoxygenated; oxygenated

• deoxygenated; deoxygenated

• oxygenated; oxygenated

The wall of the _____ is thicker because it has to pump blood to the whole body.

• right atrium

• left atrium

• right ventricle

• left ventricle

Which is the Right Ventricle?

• C

• E

• K

• M

Which is the Pulmonic Valve?

• D

• F

• L

• N

Which is the Mitral Valve?

• D

• F

• L

• N

Which is the Left Atrium?

• C

• E

• K

• M

What does PBS stand for in a scientific context?

• Phosphate Buffered Saline

• Polymerase Buffer Solution

• Protein Binding Substance

• Proton Beam Source