________ fluid helps keep the lungs expanded against the thoracic walls.

The ________ sinuses drain into the nasal cavity.

The ________ intercostal muscles are involved in (forced) expiration.

The presence of a(n) ________ in its medial aspect is unique to the left lobe.

The function of type II alveolar cells is to produce ________.

The ________ cartilages are the posterior anchor of the vocal cords.

The subdivisions of the lung from largest to smallest are the lobe, the segment, the ________,
the alveolus.

The ________ is a groove inferior to the nasal conchae through which air passes.

The ________ tonsil, or adenoids, is located on the wall of the nasopharynx.

The ________ is the portion of the soft palate that prevents food from entering the nasal
cavity.

Fusion of the alveolar and capillary membranes creates a(n) ________ membrane, or airblood
barrier.

________ maneuver involves using the vocal folds as a sphincter to increase intra-abdominal
pressure.

The soft ________ muscle of the trachea allows the esophagus to expand anteriorly during
swallowing.

The ________ marks the point where the trachea branches into the two main bronchi.