Chapter 1: The Anatomy and Physiology of the Respiratory System TRUE/FALSE 1. The palatine tonsils and the pharyngeal tonsils are thought to be types of lymphoid tissues. ANS: T Feedback Correct The palatine and pharyngeal tonsils are lymphoid tissues and are believed to serve certain immunologic defense functions. Incorrect The palatine and pharyngeal tonsils are lymphoid tissues and are believed to serve certain immunologic defense functions. PTS: 1 2. The eustachian tubes serve to equalize pressure in the middle ear. ANS: T Feedback Correct The eustachian tubes connect the nasopharynx to the middle ear and serve to equalize pressure in the middle ear. Incorrect The eustachian tubes connect the nasopharynx to the middle ear and serve to equalize pressure in the middle ear. PTS: 1 3. The oropharynx is located between the hard palate, superiorly, and the base of the tongue, inferiorly. ANS: F Feedback Correct The oropharynx is located between the soft palate, superiorly, and the base of the tongue, inferiorly. Incorrect The oropharynx is located between the soft palate, superiorly, and the base of the tongue, inferiorly. PTS: 1 4. The pharyngeal reflex is also known as the swallowing reflex. ANS: T Feedback Correct When stimulated, the muscles and nerves work together to produce the pharyngeal reflex, also known as the gag or swallowing reflex. Incorrect When stimulated, the muscles and nerves work together to produce the pharyngeal reflex, also known as the gag or swallowing reflex. PTS: 1
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