#common_tendinous_ring

Common tendinous ring

Ring of fibrous tissue around optic nerve at its entrance to the eye

The common tendinous ring, also known as the annulus of Zinn or annular tendon, is a ring of fibrous tissue surrounding the optic nerve at its entrance at the apex of the orbit. It is the common origin of the four recti muscles of the group of extraocular muscles.

Thu 25th

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