common tendinous ring


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common tendinous ring

the thickening of the periorbita around the optic canal and the central part of the superior orbital fissure in the posterior part of the bony orbit. It is the point of origin of the four rectus muscles.

Zinn,

Johann Gottfried, German anatomist, 1727-1759.
Zinn artery - Synonym(s): central artery of retina
Zinn corona - Synonym(s): Zinn vascular circle
Zinn ligament - Synonym(s): Zinn ring
Zinn membrane - the anterior layer of the iris.
Zinn ring - a fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure. Synonym(s): common tendinous ring; Zinn ligament; Zinn tendon
Zinn tendon - Synonym(s): Zinn ring
Zinn vascular circle - a network of branches of the short ciliary arteries on the sclera around the point of entrance of the optic nerve. Synonym(s): vascular circle of optic nerve; Zinn corona
Zinn zonule - a series of delicate meridional fibers arising from the inner surface of the orbiculus ciliaris and that run in bundles between and in a very thin layer over the ciliary processes. Synonym(s): ciliary zonule