GI Sequence - Histology

Pharynx, Esophagus and

Stomach

January 6, 2010

#152 Pharynx H&E

#152 Pharynx – Elastic fibers

152triC (aldehyde fuchsin)

152 H&E

#126 H&E Mid-esophagus

#126 Esophagus – muscularis mucosae

#126 mid-esophagus#126 mid-esophagus

#152 triC Pharynx#152 triC Pharynx

Epithelium

Lamina propria

Elastic fibers

Skeletal muscle

Epithelium

Lamina propria

Elastic fibers

Skeletal muscle

Epithelium

Lamina propria

Muscularis mucosae

Sumucosal glands

Smooth and skeletal m.

Epithelium

Lamina propria

Muscularis mucosae

Sumucosal glands

Smooth and skeletal m.

tracheatrachea

esophagusesophagus

Muscularis Externa of mid-esophagus (#126):Skeletal and smooth m.

Muscularis Externa of lower esophagus (#155): Smooth muscle only

#155: Cardiac StomachCardio-esophageal junction (arrow)

Cardiac glands

#160 (PAS) Esophagus – Stomachdarker staining gastric pits and lighter staining glands

(cardiac and fundic)

esophagus

Cardiafundus

#156: Fundic Stomach

Rugae

Mucosa of the Fundic StomachMucosa of the Fundic Stomach

Lymphatic noduleLymphatic nodule

Muscularis mucosaeMuscularis mucosae

#156, #157: Gastric glands#156, #157: Gastric glands

Gastric pit lined by surface mucous cells

Gastric pit lined by surface mucous cells

Mucous neck cellsMucous neck cells

Fundus or body Fundus or body

#157: Body of the gastric glands

#157: Base of the gastric glands#157: Base of the gastric glands

Chief cellsChief cells

Parietal cellsParietal cells

#162 Pylolic StomachPylo-duodenal junction (arrow)

#162 Pylolic StomachPylo-duodenal junction (arrow)

Pyloric sphincter musclePyloric sphincter muscle

Cardiac glands: coiled (mucous) glands pit:gland=1:1

Fundic (gastric) glands: straight glands pit:gland=1:5

Pyloric glands: coiled (mucous) glands pit:gland=2~3:1