spinotectal tract

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spi·no·tec·tal tract

the relatively small component of the anterolateral system that terminates in the intermediate and deep layers of the superior colliculus; part of a larger population of spinomesencephalic fibers that also includes spinal projections to the periaqueductal gray substance (spinoperiaqueductal fibers).
Synonym(s): tractus spinotectalis [TA]
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