Abstract
In order to study an etiology of severe inflammation observed on the pharynx and larynx of the man, author prepared multiple sagital sections enbloc of giant specimen, including thetongue, pharynx, larynx, trachea and esophageal introitus.
The slides were made of rats, rabbits, cats, dogs, hogs, goats, calves, Japanese monkeys, fetus and men. Microscopic studies were carried out from the standpoint of comparative anatomy. Severe inflammatory reactions of the esophageal introitus were noted most often on the hogs, followed by the men and the monkeys. At the esophageal introitus the calves were found to be effected most in structure.
As for the tongue, the inflammatory reactions were the heaviest on the hogs, men and monkeys.
Resulted epithelial structural damages at this area were the strongest on the hogs, followedby men and calves with decreasing severity. These findings were discussed and it was presumed that these differences could be partly explained be structual evolution of the hypopharynx and the adjacent tissues of the primates and homo sapiens.
