667
CHAPTER SEVENTEEN
Digestive System
Pyloric sphincter
Duodenum
Pylorus
Fundus
Gastric folds
Body
FIGURE 17.18
Radiograph of a stomach. (
Note:
A radiopaque compound the patient swallowed appears white in the radiograph.)
Gastric pits
Chief cell
(a)
(b)
Parietal cell
Gastric gland
Mucous cell
Mucosa
Submucosa
Muscle
layers
Serosa
Mucous cell
Gastric pit
Portion of
a gastric gland
Parietal cell
Portion of a
gastric gland
Chief cell
FIGURE 17.19
Lining of the stomach. (
a
) Gastric glands include mucous cells, parietal cells, and chief cells. The mucosa of the stomach is studded
with gastric pits that are the openings of the gastric glands. (
b
) A light micrograph of cells associated with the gastric glands (60×).
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