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Compared to its partial pressure in the atmosphere, oxygen’s partial pressure in the alveoli is lower.

A substance that dissociates in water to form cations and anions is called an electrolyte.

When the diaphragm contracts, the size of the thoracic cavity ___________, causing air to _____________.

The amount of air which cannot be expelled from the lungs is known as the

The presence of proteins in the plasma tends to _____________

Identify the vascular structure outlined in BLACK and indicated by the BLACK ARROW.

The countercurrent multiplier involves the movement of ____________ 

Which of the following statements accurately describes how the lungs function in acid/base balance?

The hormone Atrial Natriuretic Peptide (ANP)

Which reaction involving CO2 predominates within erythrocytes in the pulmonary capillaries of the lung?