4.1.1 POJA-L4213
Title: Longitudinal section through the cardiac zone of esophagus and stomach
Description:
The arrow points to the abrupt transition of the multilayered non-keratinizing squamous epithelium (1) of the esophagus to the single layered columnar epithelium of the cardiac-zone (7) of the stomach, stain Azan, human.
(2): Lamina propria with mucinous cardiac glands, both at both sides of the abrupt transition zone.
(3): Lamina muscularis mucosae.
(4): Tela submucosa.
(5): Inner circular muscles.
(6): Part of the longitudinal outer muscle layer.
(8): Solitary lymph follicles in the cardiac zone of the stomach. Note that the stomach epithelium has been folded to form crypts. In the upper one third of the esophagus the tunica muscularis contains striated muscle cells, which are replaced by smooth muscle cells further downwards. However, both muscle types are innervated by nervus vagus fibers. This means that the swallow movement starts controlled, but passes autonomously.
Keywords/Mesh: esophagus, stomach, cardia zone, histology, POJA collection
Title: Longitudinal section through the cardiac zone of esophagus and stomach
Description:
The arrow points to the abrupt transition of the multilayered non-keratinizing squamous epithelium (1) of the esophagus to the single layered columnar epithelium of the cardiac-zone (7) of the stomach, stain Azan, human.
(2): Lamina propria with mucinous cardiac glands, both at both sides of the abrupt transition zone.
(3): Lamina muscularis mucosae.
(4): Tela submucosa.
(5): Inner circular muscles.
(6): Part of the longitudinal outer muscle layer.
(8): Solitary lymph follicles in the cardiac zone of the stomach. Note that the stomach epithelium has been folded to form crypts. In the upper one third of the esophagus the tunica muscularis contains striated muscle cells, which are replaced by smooth muscle cells further downwards. However, both muscle types are innervated by nervus vagus fibers. This means that the swallow movement starts controlled, but passes autonomously.
Keywords/Mesh: esophagus, stomach, cardia zone, histology, POJA collection