Rh. R. Bensley 113 
As the distance from the cesophageal epithelium increases and the 
mucous membrane diminishes in thickness the tubules become less and 
less branched and the peculiar grouping disappears, although an appar- 
ent grouping may sometimes be observed, caused by the regular oceur- 
rence at intervals of lymphoid follicles. The cysts also become rare 
and the number of foveole opening on a given area more numerous. 
In the distal thin portions of the mucous membrane there is little 
difference between the cardiac glands and the adjacent fundus glands 
as regards their shape and mode of branching. 
uy 
ey T 
unica mucosa 
f ) P 
Muscularis 
\ mucosae 
is “Nodulus « 
f 8% lymphaticus 
Fic. 1. Longitudinal section of the tunica mucosa of the cardiac region of man, 
2.5cm. from the edge of the @sophageal epithelium. x 70. The leucocytes and 
plasma cells are considerably more numerous than in the figure. 
Throughout the area there is considerable interglandular tissue of a 
reticular character, the meshes of which are filled with leucocytes of 
various types. Considerable collagenic tissue is also present between 
the bases of the glands and the muscularis mucose. Many bands of 
smooth muscle fiber ascend from the region of the muscularis mucose 
in the direction of the epithelium. The structure of this interglandular 
tissue will be discussed at greater length in a paper on the “ Structure 
of the Human Stomach,” now in course of preparation. 
Lymph follicles are very numerous in the proximal thicker portion. 
They occur at fairly regular intervals and are situated in the mucosa, 
8 
