[Descending connections of the dorsal cortex in turtles].

Efferent connections of the dorsal cortex have been studied in the tortoises Emys orbicularis and Testudo horsfieldi using the degeneration tracing after dorso-medial lesions of this zone. Terminal degeneration was found in the hippocampal and piriform cortex, in the structures of striatum (d.v.r. bandle, putamen) and in the nucleus (centralis) lateralis and nucleus geniculatus lateralis of the thalamus. Fiber degeneration was also found in the fornix, hippocampal commissure, in the medial and lateral forebrain bundles including dorsal and ventral peduncies.