Circle of Zinn

Last revised by Frank Gaillard on 17 Jul 2023

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Circle of Zinn. Reference article, Radiopaedia.org (Accessed on 28 Apr 2024) https://doi.org/10.53347/rID-172001

DOI:

https://doi.org/10.53347/rID-172001

Permalink:

https://radiopaedia.org/articles/172001

rID:

172001

Article created:

16 Jul 2023, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had the following disclosures:

Biogen Australia Pty Ltd, Investigator-Initiated Research Grant for CAD software in multiple sclerosis: finished Oct 2021 (past)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Frank Gaillard's current disclosures

Last revised:

17 Jul 2023, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was last revised Frank Gaillard had the following disclosures:

Biogen Australia Pty Ltd, Investigator-Initiated Research Grant for CAD software in multiple sclerosis: finished Oct 2021 (past)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Frank Gaillard's current disclosures

Revisions:

1 time, by 1 contributor - see full revision history and disclosures

Systems:

Central Nervous System, Head & Neck, Vascular

Sections:

Anatomy

The circle of Zinn is an arterial anastomotic ring surrounding the optic nerve head in the sclera formed by branches of the short posterior ciliary arteries. Multiple small branches from the circle of Zinn supply the anterior pia of the optic nerve, the optic disc and contribute to the blood supply of the posterior choroid ¹.