{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T01:02:40Z","timestamp":1767920560853,"version":"3.49.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[1969,10,1]],"date-time":"1969-10-01T00:00:00Z","timestamp":-7948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["reproduction-online.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1969,10,1]]},"abstract":"<jats:p>In the intermingled arteries and veins of the retia mirabilia leading to the swim-bladders of fishes (see Enns, Douglas &amp; Scholander, 1967; Berg &amp; Steen, 1968) O2 and CO2 are transferred from one vessel to another. It has also been suggested that O2 may pass between the arterial and venous blood in the spermatic cord (Cross &amp; Silver, 1962) but the similar O2 saturation of haemoglobin in blood from the femoral and testicular arteries of rams did not support this idea (Setchell &amp; Waites, 1964). However, in most marsupials, the internal spermatic artery breaks up into many branches in the spermatic cord and these branches are interspersed among a similar number of veins (Harrison, 1948, 1949; Barnett &amp; Brazenor, 1958). Countercurrent exchange of gases would be much more likely to occur with this anatomy than in the eutherian mammals in which the internal spermatic artery<\/jats:p>","DOI":"10.1530\/jrf.0.0200179","type":"journal-article","created":{"date-parts":[[2007,5,15]],"date-time":"2007-05-15T17:09:47Z","timestamp":1179248987000},"page":"179-181","update-policy":"https:\/\/doi.org\/10.1530\/rep\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["ABSENCE OF COUNTERCURRENT EXCHANGE OF OXYGEN, CARBON DIOXIDE, HYDROGEN IONS OR GLUCOSE BETWEEN THE ARTERIAL AND VENOUS BLOOD IN THE SPERMATIC CORDS OF RAMS AND TWO MARSUPIALS (\n                    <i>MACROPUS EUGENII<\/i>\n                    AND\n                    <i>MEGALEIA RUFA<\/i>\n                    )"],"prefix":"10.1093","volume":"20","author":[{"given":"B. P.","family":"SETCHELL","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N. T.","family":"HINKS","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[1969,10,1]]},"container-title":["Reproduction"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/reproduction\/article-pdf\/20\/1\/179\/64938791\/jrf_20_1_030.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/reproduction\/article-pdf\/20\/1\/179\/64938791\/jrf_20_1_030.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T19:11:41Z","timestamp":1767899501000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/reproduction\/article\/20\/1\/179\/8291751"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1969,10,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1969,10,1]]}},"URL":"https:\/\/doi.org\/10.1530\/jrf.0.0200179","relation":{},"ISSN":["1470-1626","1741-7899"],"issn-type":[{"value":"1470-1626","type":"print"},{"value":"1741-7899","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1969,10,1]]},"published":{"date-parts":[[1969,10,1]]}}}