Why Is the Left Lung About 10% Smaller Than the Right

Multiple Choice

Why is the left lung about 10% smaller than the right lung?

A) The stomach is found on the left side of the body and pushes up against the diaphragm.
B) The large blood vessels like the vena cavae and aorta take up more space on the left side.
C) The majority of the mass of the heart is found on the left side.
D) The right side of the body does more work so it needs more air.
E) The thymus gland takes up more space on the left side.