Ora serrata

This article is about the ora serrata of the eye. For ora serrata, a historical term for the Z-line of the gastroesophageal junction, see Gastroesophageal junction.

The ora serrata is the serrated junction between the choroid and the ciliary body. This junction marks the transition from the simple, non-photosensitive area of the ciliary body to the complex, multi-layered, photosensitive region of the retina. The pigmented layer is continuous over choroid, ciliary body and iris while the nervous layer terminates just before the ciliary body. This point is the ora serrata. In this region the pigmented epithelium of the retina transitions into the outer pigmented epithelium of the ciliary body and the inner portion of the retina transitions into the non-pigmented epithelium of the cilia. In animals in which the region does not have a serrated appearance, it is called the ora ciliaris retinae.

Ora serrata
Diagram of the blood vessels of the eye, as seen in a horizontal section.
Identifiers
TA98	A15.2.04.006
TA2	6780
FMA	58600
Anatomical terminology

Additional images

• 
  Interior of anterior half of bulb of eye.
• 
  Vessels of the choroid, ciliary processes, and iris of a child.
• 
  Partial section of the human eye

See also

• Human eye

External links

• Anatomy photo:29:22-0204 at the SUNY Downstate Medical Center
• Atlas image: eye_1 at the University of Michigan Health System - "Sagittal Section Through the Eyeball"
• Atlas image: eye_3 at the University of Michigan Health System - "Coronal Section Through the Eyeball"
• "Anatomy diagram: 02566.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-07-22.