DIGESTION 



3*1 



those of the general gastric surface. The peptic or cardiac glands 

 have short ducts, into each of which open one to three gland-tubes 

 seldom branched. The ducts of the pyloric glands are longer, and 

 the secreting tubules, which also open by twos or threes into the 

 ducts, are branched. The secreting parts of both kinds of glands are 

 lined by short columnar, finely granular cells ; and in the pylonc 

 tubules no others are present. But, as we have said, in the peptic 



FIG. 104. THE GASTRIC GLANDS. On the left cardiac, light pyloric (Ebstein). 



glands there are besides large ovoid cells scattered at intervals like 

 beads between the basement membrane and the lining or chief cells, 



The histological changes connected with secretion do not 

 differ essentially from those described in the pancreas ancl 

 the parotid, but there is much greater difficulty in making 

 observations on the living, or at least but slightly altered, 

 cells. During digestion the granules seem to disappear from 



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