The movement of air out of the lungs is referred to as .

The movement of air into the lungs is called .

The oily phospholipid secretion that coats the alveolar epithelium and keeps the alveoli from collapsing is called .

Inspired air leaves the pharynx by passing through a narrow opening called the .

The glottis is surrounded and protected by the .

The part of the bronchial tree dominated by smooth muscle tissue is the .

The diffusion of gases between the alveoli and the circulating blood is termed .

The exchange of dissolved gases between the blood and the interstitial fluids in peripheral tissues is called .

With increasing age, deterioration of elastic tissue reduces lung elasticity, lowering the .

The primary function of pulmonary ventilation is to maintain adequate .