. Anatomy, descriptive and applied. Anatomy. Internal Jugular ?External jugular Subclavian Duct of Cuvier Left postcardinal -Ductus venosus Benal Subcardinal ?External iliac —Internal iliac Fig. 548.—Scheme showing early stages of development of the inferior vena cava. cardinals above and below and also with each other by a series of transverse channels. Of the transverse channels, only one persists to join each renal vein. The left subcardinal vein practi- cally disappears, while the right subcardinal enlarges and joins the ductus venosus cephalad and the right postcardinal caudad. At this st
. Anatomy, descriptive and applied. Anatomy. Internal Jugular ?External jugular Subclavian Duct of Cuvier Left postcardinal -Ductus venosus Benal Subcardinal ?External iliac —Internal iliac Fig. 548.—Scheme showing early stages of development of the inferior vena cava. cardinals above and below and also with each other by a series of transverse channels. Of the transverse channels, only one persists to join each renal vein. The left subcardinal vein practi- cally disappears, while the right subcardinal enlarges and joins the ductus venosus cephalad and the right postcardinal caudad. At this stage the blood draining the lower extremities passes along a right-sided channel which courses ventrad of the lu-eter. Internal jugular. '^'Subclavian Suprarenal Benal Simrynatie A B Fig. 549.—Diagram illustrating the development of the inferior vena cava in the cat. The cardinal and subcardinal veins and ductus venosus are blue and the supracardinal black. (Adapted from McClure and Huntington.) The supracardinal veins develop as bilaterally symmetrical channels dorsomesad of the postcardinals, l>y lonoitudinal anastomoses between parietal postcardinal tributaries fHuntington and McClure). Each vein extends from where the posterior limb veins open into the post. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-1922. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
