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The spinal vein arises from an enlarged occipital sinus over the medulla and extends the entire length of the vertebral column. Unlike in squamate reptiles, the spinal vein is single (nonplexiform), voluminous, and situated dorsal to the spinal cord, and plexi lateral to the cord span between emerging intercostal veins. The connections with the other venous systems are otherwise similar to those in other tetrapods. The overall anatomy of this vessel and its abundant connections with the other venous systems indicate it likely plays a primary role in returning blood to the heart from all parts of the body. Preliminary studies of function suggest that this vessel could also play an adaptive role during basking and diving. J. Morphol. 258:327\u2013335, 2003. \u00a9 2003 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/jmor.10156","type":"journal-article","created":{"date-parts":[[2003,10,24]],"date-time":"2003-10-24T09:10:55Z","timestamp":1066986655000},"page":"327-335","source":"Crossref","is-referenced-by-count":58,"title":["Anatomy of the crocodilian spinal vein"],"prefix":"10.1002","volume":"258","author":[{"given":"Kevin C.","family":"Zippel","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harvey B.","family":"Lillywhite","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher 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