LYMPHATIC ABSORPTION FROM THE NASOPHARYNX

Abstract

A new quantitative method for the production of an even flow of cervical lymph in anesthetized animals is described. The method involves regular passive motion of the head; is free of the complications introduced by the massage heretofore usually necessary in order to secure lymph; and may be combined with perfusion of the nasopharynx in the study of lymphatic absorption from this area. Expts. are reported showing that lymphatic absorption from the nasopharynx during nasopharyngeal perfusion with Ringer''s soln. is too small to be measured quantitatively. Perfusion of the nasopharynx with distilled water results in extensive lymphatic absorption of fluid with consequent dilution of cervical lymph,[long dash]a result apparently due to the osmotic pressure of body-fluid salts and proteins acting on the hypotonic distilled water. During normal physiological conditions, the lymphatic absorption of fluid from the nasopharynx probably takes place to a very slight degree.