cribrum

crib·ri·form plate of eth·moid bone

[TA]
a horizontal plate from which are suspended the labyrinth, on either side, and the lamina perpendicularis in the center; it fits into the ethmoidal notch of the frontal bone and supports the olfactory lobes of the cerebrum, being pierced with numerous openings for the passage of the olfactory nerves.

cribrum

/crib·rum/ (krib´rum) pl. crib´ra   [L.] lamina cribrosa of ethmoid bone.

crib·ri·form plate of eth·moid bone

(krib'ri-fōrm plāt eth'moyd bōn) [TA]
A horizontal lamina from which are suspended the labyrinth, on either side, and the lamina perpendicularis in the center. It fits into the ethmoidal notch of the frontal bone and supports the olfactory lobes of the cerebrum, being pierced with numerous openings for the passage of the olfactory nerves.
Synonym(s): lamina cribrosa ossis ethmoidalis [TA] , cribrum.
References in periodicals archive ?
v]: `Quidam ratisponensis monachus nomine Otkerus adinvenit hanc mansuram a quadripertita et nominavit earn theorema troporum quod dicere possamus cribrum monochordi .
William of Hirsau fully endorsed the principle of conjunct tetrachords within the octave as first outlined by Herman of Reichenau, and devoted the four chapters of his Musica following the introduction of cribrum monochordi to a discussion of the necessity for conjunction around D and d (in the process openly criticizing both Boethius and Guido of Arezzo for failing to recognize the double function of these pitches).
Andreas Werckmeister's Cribrum musicum (1700) and Harmonologia musica (1702); the original German treatises with parallel, annotated English translations.