Premium
lntracortical Connections in the Snakes Natrix sipedon and Thamnophis sirtalis
Author(s) -
Ulinski Philip S.
Publication year - 1976
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1976.150.2.463
Subject(s) - natrix , cortex (anatomy) , biology , anatomy , thamnophis sirtalis , commissure , neuroscience , zoology
The association and commissural connections between the four cortical areas in water ( Natrix sipedon ) and garter ( Thamnophis sirtalis ) snakes were studied by placing lesions on the cortical surface and studying the resulting degeneration in Fink‐Heimer preparations. Lateral cortex projects to the outer one third of layer 1 of ipsilateral medial cortex. Dorsal cortex projects to the middle third of layer 1 of ipsilateral medial cortex. Dorsomedial cortex projects bilaterally to the inner third of layer 1 and to layer 3 of me dial cortex. It also projects to layer 1 of contralateral dorsomedial cortex. Medial cortex projects ipsilaterally to each of the other cortical areas. With the apparent exception of the projection of medial cortex to lateral cortex, each projection is organized such that each rostrocaudal segment of a cortical area projects to all segments of the target area lying at the same or more caudal levels.