22.3 Short Answer Questions
1) ________ fluid helps keep the lungs expanded against the thoracic walls.
2) The ________ sinuses drain into the nasal cavity.
3) The ________ intercostal muscles are involved in (forced) expiration.
4) The presence of a(n) ________ in its medial aspect is unique to the left lobe.
5) The function of type II alveolar cells is to produce ________.
6) The ________ cartilages are the posterior anchor of the vocal cords.
7) The subdivisions of the lung from largest to smallest are the lobe, the segment, the ________, the alveolus.
8) The ________ is a groove inferior to the nasal conchae through which air passes.
9) The ________ tonsil, or adenoids, is located on the wall of the nasopharynx.
10) The ________ is the portion of the soft palate that prevents food from entering the nasal cavity.
11) Fusion of the alveolar and capillary membranes creates a(n) ________ membrane, or air-blood barrier.
12) ________ maneuver involves using the vocal folds as a sphincter to increase intra-abdominal pressure.
13) The soft ________ muscle of the trachea allows the esophagus to expand anteriorly during swallowing.
14) The unexpected death of an apparently healthy infant during sleep is called ________.
15) The ________ marks the point where the trachea branches into the two main bronchi.