Fundamentals of Anatomy and Physiology

Nutrition and the Digestive System 387

Esophagus

Lower esophageal

sphincter

Cardia

Antrum (pylorus)

(^) r e
(^) a t (^) u
L (^) c u^ rv^
esser (^)
Duodenum of Gr^
small intestine Pyloric e atercur
sphincter
(A)
v a
t u r
e
Fundus
Body
Rugae
Serosa
Muscularis externa:
outer longitudinal
middle circular
inner oblique
(^) ®
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Gastric
pit
Surface mucous
cells^
Lamina (^)
Gastric propria^
(^) Mucous (3) Mucosa
glands (^) neck cells layer
or pits (^)
(^) Parietal (2) (^)
cells (^)
Chief (1) (^)
cells^
Submucosa
(^)
(^)
(^) Muscularis layer (^)
mucosae (^)
Blood vessels (^) Muscularis
Oblique muscle
(^) layer (^)
Circular muscle (^)
Longitudinal
Serosa^
(^) layer
muscle^
(^) Connective (^)
tissue (^)
(B)
Visceral
peritoneum (^)
Figure 16- 9 (A) The anatomy of the stomach. (B) The three secreting cells of the gastric glands.
(^) ®
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