Corpus: Ora serrata
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This text has been translated by an AI and may sound raw. It will be reviewed shortly. Thank you for your patience!
from Latin: serratus - serrated
English:
Definition[Bearbeiten]
The term ora serrata can refer to two different epithelial junctions in anatomy.
Eye[Bearbeiten]
The ora serrata of the eye is a circular, jagged boundary line between the "seeing" (pars optica retinae) and "blind" part (pars caeca retinae) of the retina. At this point, the stratum nervosum is reduced to a layer of unpigmented epithelial cells. The ora serrata is located in the anterior part of the bulbus oculi, approx. 8 to 9 mm behind the limbus corneae.
The vitreous body is attached to the ora serrata at the so-called Salzmann vitreous body base. A vitreous detachment at this point can result in retinal detachment.
Stomach[Bearbeiten]
The ora serrata of the stomach, also labelled as the Z-line', marks the transition from the dark red gastric mucosa of the cardia to the greyish-pink squamous epithelium of the distal oesophagus. This tissue section is clinically also called the oesophagogastric junction.
| Endoscopy of the Z-line |
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