A ring of fibrous tissue surrounding the optic nerve at its entrance at the apex of the orbit. [ http://en.wikipedia.org/wiki/Annulus_of_Zinn ]
Synonyms: anulus tendineus communis common annular tendon anulus of Zinn common anular tendon
Term information
ligament of Zinn
annulus of Zinn
common tendinous ring
anulus tendineus communis
anulus tendineus
annulus tendineus communis
tendon of Zinn