4 oz = ________ mL

The heart is a muscular pump lying just ________ of the midline of the chest (mediastinum)

a. right b. above c. beneath d. left

The difference between respiration and ventilation is best described as:

A) Ventilation describes the absorption of O2 into the cells while ventilation is the excretion of CO2 from the cells. B) Ventilation describes the exchange of gases at the cellular level while respiration describes the same process in the lungs. C) Respiration describes the exchange of O2 and CO2 while ventilation describes the movement of air that carries them. D) Respiration and ventilation are similar terms that both describe normal and healthy breathing in the living organism.