Dictionary > Common tendinous ring

Common tendinous ring

Common tendinous ring
a fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve.
Synonym: annulus tendineus communis, Zinn’s ligament, Zinn’s ring, Zinn’s tendon.


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