Intestinal glands in the lamina propria belong to simple tubular gland; its basement is primarily composed of columnar cells and a few goblet cells, but Paneth cells are not observed in the crypts (Fig.
Most intestinal glands are developed into simple tubular glands with more goblet cells (Fig.
The simple glandular tubules and the simple tubular glands
open into the shallow crypts.
The simple tubular glands were located in the superficial lamella of the lamina propria, while the compound tubular glands were located in the deep lamella.
The glands upon the simple tubular glands were peacock tail-liked, while the length of simple tubular glands and the thickness of the interior layer of lamina muscularis mucosae were reduced.
Short simple tubular glands
open at the base of the folds.
The results revealed that the epithelium of the proventriculus invaginated to form the simple tubular glands, which showed a weak positive reaction with PAS stain but an intense positive reaction with AB (PH 2.5) stain.
The mucous membrane of proventriculus was lined by a simple columnar epithelium, invaginating to form the simple tubular glands (Fig.1A), which was constituted by cells with basal nuclei and acidophilic cytoplasm.
Lamina propria was filled with long and straight simple tubular glands
or branched tubular glands, which was similar to the fundic glandular area of other ruminants (Kitamura et al., 1986).
Zone Characteristics AB 2.5 PAS/AB 2.5 Mucous Simple tubular glands
+ Light fuchsia cranial zone Ramified tubular glands.
The glandular area presents pleats whose recesses originate deep pouches, occupied by simple tubular glands
, the lining epithelium is cylindrical simple.