fillet

(fil’ct). A loop-shaped structure. 2. A loop, as of cord or tape, for making traction. 3. The white band on the outer side of the superior cerebellar peduncles, beginning between the two olivary bodies and extending through the tegmentum of the crus and the middle of the pons; the lemniscus. lateral f., a portion of the lemniscus or fillet that enters the posterior corpora quadrigemina. mesal f., a portion of the lemniscus that pa es to the anterior corpora quadrigemina and thalamus optic us. olivary f., the nerve fasciculus surrounding the olivary nucleus.