lamina cribrosa

noun
lamina cri·bro·sa | \-kri-ˈbrō-sə \
plural laminae cribrosae\-ˌsē, -ˌsī \

Medical Definition of lamina cribrosa 

: any of several anatomical structures having the form of a perforated plate: as

a : cribriform plate sense 1

b : the part of the sclera of the eye penetrated by the fibers of the optic nerve

c : a perforated plate that closes the internal auditory canal

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