Note that the pyloric glands,
unlike the gastric glands found in the fundus and body of the
stomach, contain mainly mucus-secreting cells and few parietal
cells.
Plus a few scattered gastrin
cells representing the diffuse endocrine system along the gut.
Cells of the enteroendocrine
system will be considered more fully in a later topic, but they
are not well-shown in routinely stained slides.
What is the functional
significance of the main difference between the glands in the
pylorus and in the rest of the stomach?
Small Intestine -- site where
digestion is completed, using enzymes from the pancreas and bile,
and where products of digestion are absorbed. The three regions
(duodenum, jejunum, and ileum, are similar histologically.) Examine
the plastinated segment of small intestine, noting the features of
its wall and mucosal folds.
What is the difference between a
villus and a plica circulares?
Examine
the mucosa of the pyloric stomach,
Small Intestine -- site where
digestion is completed, using enzymes from the pancreas and bile,
and where products of digestion are absorbed. The three regions
(duodenum, jejunum, and ileum, are similar histologically.) Examine
the plastinated segment of small intestine, noting the features of
its wall and mucosal folds.