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2013 Pearson Education, Inc. Pharyngeal tonsil Palate Palatine tonsil Lingual tonsil Figure 14-5 The Tonsils.

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Pharyngeal - (Adenoids if enlarged). Located in the posterior wall of the nasopharynx. Palatine - Largest tonsils, most often infected. Located on either side at the posterior end of the oral cavity. Lingual - lumpy collection of lymphoid follicles at the base of the tongue. Tubal - surround openings of auditory tubes into the pharynx.

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Nasopharynx: Passageway for air from nasal cavity to the Laryngopharynx: which extends from the oropharynx to the esophagus and the larynx. Oropharynx extends from the soft palate to the epiglottis. Conducts food and air into Laryngopharynx. Contains two palatine tonsile and one lingual tonsil at base of tongue.

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The tonsils are small grape like structures that consist of lymphatic tissue. They are located at near the nasal and oral cavities to stop and filter potential pathogens from entering the rest of the body. The 3 sets of tonsils include: the pharyngeal tonsils, lingual tonsils, and the palatine tonsils. The most common infections take place in the palatine tonsils, and can be easily removed. Although they are removed, your slightly impairing your immune system by removing that lymphatic…

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Just a reminder of basic structures. (Adenoid tonsil in nasopharynx and lingual tonsil in oropharynx contain lymphatic tissue contributing to immune function. Sinuses: mucus production. Olfactory nerve: smell. Larynx: voicebox; only open with airflow, epiglottis closes during swallowing into esophagus to block trachea.)

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