Download Digestive System

Slot 4.1: Submandibular (left) and sublingual (right) glands
m = mucous, s = serous, x = mixed, d = duct
Mucous acini
Serous demilunes
D = duct; F = adipose cells
Slot 4.2:
Parotid
Gland
Serous Acini
uct
Slot 4.3:
Gastric
mucosa
diagram
(left to
right,
pyloric,
fundic,
cardaic)
P=parietal
C=chief
N=mucous neck
L=lamina propria
Arrows=enteroendocrine cells
Slot 4.4:
Stomach
sections
Base of gastric glands
Neck of gastric glands
P=parietal
I=isthmus
N=neck
L=lamina propria
Arrows (left) =
mucus
Arrows (right) =
gastric pits
Gastric pits and gastric glands
Gastric pits and gastric glands
Slot 4.5: Small intestine sections
g = goblet cell; arrowhead = brush border;
Arrows = enteroendocrine cells; L = lamina
propria; c = capillary, m = smooth muscle
cell
Ileum - villus
b = brush border; arrowheads = golgi;
Arrows = junctional complexes joining
adjacent cells
Intestinal epithelium on villi
Slot 4.7: Large intestine sections
Large intestine
Colon: Rectoanal junction
Slot 4.6:
Appendix
L = lumen
M = mucosa
S = submucosa
a = adipose
F = muscularis
Arrows = crypts
Arrowheads =
lymph nodules
Slot 4.8: Liver
Sinusoids
Hepatocytes
C = central vein; P = portal canal
Slot 4.9:
Diagram
of
hepatic
lobule
LEFT:
C = central vein
P = portal canal
Arrows=sinusoids
RIGHT:
e = endothelium
Arrows=Kupffer
cells
Arrowhead =
binucleate hepatocyte
Slot 4.10:
Liver
sections
Hepatic artery
Bile duct
Portal Vein
Reticular fibers
Sinusoids emptying
into central vein
= lymph vessel
Central Vein
Portal Canal
Slot 4.11: Gall bladder sections
Simple columnar
epithelium
Lamina
propria
g = mucous glands
M = muscularis
A = adventitia
Lamina
propria
c = capillaries
a = arteriole
v = venule
Arrowhead = golgi
Slot 4.12: Tongue - circumvallate papilla
Taste buds
Primary papilla
Secondary papilla
von Ebner’s glands
Slot 4.13: Tongue - foliate papillae
Taste buds
Secondary papilla
von Ebner’s glands
Slot 4.14: Tongue - foliate papillae
Secondary papilla
Taste buds
von Ebner’s glands
Slot 4.15: Esophagus (c.s.)
Slot 4.16: Esophagus section
Mucosa (stratified squamous epithelium)
Submucosa
Muscularis externa
Lamina propria
Slot 4.17: Esophagogastric junction
Submucosal mucous glands
Muscularis mucosae
Gastric pit
Note change in epithelial lining at the arrows
Stomach = left; Esophagus = right
Slot 4.18: Stomach (fundus and pylorus)
Gastric pit
Gastric pit
Gastric glands
Gastric glands
Fundus = short pits, long glands
Pylorus = deep pits, medium glands
Slot 4.19: Gastric glands
Enteroendocrine Cell
Chief Cell
Slot 4.20: Gastric glands
Parietal Cells
Chief Cells
Slot 4.21: Gastroduodenal junction
Villi
Crypts
Brunner’s Glands
Note change in thickness of
the muscularis externa
(Pylorus = right; Duodenum = left)
Slot 4.22: Small intestine sections
Left to Right: duodenum, jejunum, ileum
Duodenum with Brunner’s glands in submucosa
Jejunum with thickest mucosa
Ileum with Peyer’s patches in lamina propria/submucosa
Brunner’s glands
Peyer’s patches
Slot 4.23: Intestinal epithelium (simple columnar)
Goblet cell
Brush border
Slot 4.24: Duodenum (Brunner’s Glands)
Crypt of Lieberkuhn
Brunner’s glands
Slot 4.26: Meissner’s plexus/Auerbach’s plexus
Muscularis
mucosae
Muscularis
externa
Ganglion cells of
Meissner’s plexus
Ganglion cell of
Auerbach’s plexus
Slot 4.28: Ileum
Goblet cell
Lamina propria
Villus
Slot 4.29: Appendix
Crypt of Lieberkuhn
Lymph nodule
Submucosa
IC
Muscularis externa
OL
Slot 4.30:
Jejunum
(blood
supply)
V = villi
S = submucosa
F = muscularis
externa
P = serosa
Arrow = Vessels run
parallel with muscle
fibers in inner circular
layer of M. externa
Slot 4.31: Small Intestine (blood supply)
V = villi
S = submucosa
F = muscularis
externa
P = serosa
V
S
F
P
Slot 4.32: Large intestine section
Intestinal crypts – note abundance of goblet cells
Slot 4.33: Liver section
Rough outline
of liver lobule
Portal system
Central vein
Slot 4.34: Liver (blood supply)
Portal vein
Sinusoids
Central vein
Slot 4.35: Liver (hepatocytes and sinusoids)
Hepatocyte
(note binucleate
condition)
Endothelial cell
Slot 4.36: Liver (portal canals)
Hepatic artery
Bile duct
Lymph vessel
Nerve
Lymph vessel
Portal Vein
Bile duct
Hepatic artery
Slot 4.37: Liver section
Hepatocytes
Endothelial cells
Central
Vein
Slot 4.38: Gall bladder section
Simple columnar epithelium
Lamina propria
Muscularis
Adventitia
Slot 4.39: Jejunum
Crypts of Lieberkuhn
Muscularis mucosae
Submucosa
Muscularis externa
Villus
Slot 2.55: Circumvallate papilla
Taste buds
Secondary papilla
Primary papilla
von Ebner’s glands
Slot 2.56: Taste buds (Tongue)
Taste buds
Taste pore
Taste receptor cell
Sustentacular cell
Basal cell
Secondary papilla
Slot 2.59: Fundic stomach
Enteroendocrine Cell
Chief Cell
Slot 2.60: Duodenum
Villus
Crypt
Brunner’s Glands
Slot 2.61: Ileum
Goblet cell
Lamina propria
Villus