The term "throat" as understood for purposes of this discussion is conveniently divisible into the mesopharynx and the hypopharynx. The mesopharynx is bounded posteriorly by the posterior pharyngeal wall, laterally by the lateral pharyngeal walls, superiorly by the nasopharynx and inferiorly by the larynx and upper pharyngeal end of the esophagus. Anteriorly it is bounded by the base of the tongue and by the open space directed toward the mouth. The chief organ within the hypopharynx is the larynx, bounded above by the mesopharyngeal space, posteriorly by the upper end of the esophagus, inferiorly by the trachea and anteriorly by the base of the tongue.
Within the mesopharynx lie the well known masses of lymphoid tissue, more or less symmetrically arranged to constitute Waldeyer's ring, which through their tendency to disease constitute such a large factor in the field of laryngology. Chief among these primary pathologic conditions affecting
RICHARDS LG. TREATMENT OF DISEASES OF THE THROAT. JAMA. 1940;115(7):501–506. doi:10.1001/jama.1940.02810330007003
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