File:Sabin1915 plate01.jpg

Plate 1

Fig. 1. Embryo pig 9 mm long (about the stage of fig. 12 in Kcibel's Xonnaltafcln, Das Schweini, in which tinveins of the right Wolffian body have been injected with silver nit rale. This is a stage before the tail has curved and hence the specimen is younger than the one of fig. 2, which measures less. Cleared by the Spalteholz Method. Xll.

v. c., v. caudalis; v. c. M., v. cardinalis mesialis at the point at which it curves dorsalward to join the v. cardinalis posterior; v. c. p., v. cardinalis posterior; v. T. L., v. transversa lateralis of the Wolffian body; v. T. M., v. transvevsa mesialis of the WolfIian body; v. v., v. ventralis of the Wolffian body.

Fig. 2. Dissection of an embryo pig 8 mm long, in which the veins have been injected with silver nitrate through the anterior cardinal vein. The left Wolffian body has been dissected away so that the mesial surface of the right Wolffian body is exposed. Cleared by the Spalteholz Method. Xll.

v. c. P., v. cardinalis posterior; v. c. M., v. cardinalis mesialis at the point of the anastomosis of the veins of the two sides, which is also the point where the v. cardinalis mesialis dextra curves ventralwanl to the liver; v. M. A., v. mesialis anterior of the Wolffian body; v. OM., oniphalo-mcsenterica ; v. s., v. spinalis; v. T. M., v. transversa mesialis of the Wolffian body; v. u., v. umbilicalis; v. v., v. ventralis of the Wolffian body.

Fig. 3. Embryo pig 11 mm long, in which the veins have been injected with silver nitrate, showing the left Wolffian body and through it the right mesial cardinal vein. Cleared by the Spalteholz Method. Xll.

v. c. M.. v. cardinalis mesialis; v. c. p., v. cardinalis posterior; v. F. P., v. fibularis primitiva; v. T. M., v. transversa mesialis belonging to the left Wolffian body; v. T. L., v. transversa lateralis of the Wolffian body; v. u., v. umbilicalis; v. v., v. ventralis of the Wolffian body.

Fig. 4. Dissection of an embryo pig 23 mm long, in which the veins have been injected with silver nit rate. Cleared by Spalteholz Method. X10.

D. c., ductus Cuvier; v. A., v. azygos; v. A'., v. azygos above the 1 point where it is joined by the v. cardinalis posterior; v. c. P., v. cardinalis posterior; v. c. v'., v. cardinalis posterior within the Wolffian body; v. I., anastomosis which is the forerunner of the v. innominata; v. M. A., v. mesialis anterior of the Wolffian body; v. M. I., v. mammaria interna; v. TE., v. thoracoepigastrica; v. T. L., v. transversa lateralis making the mainroot of the vena cava within the Wolffian body; v. u. p., v. ulnaris primitiva; v. v., v. ventralis of the Wolffian body; w. B. i., Wolffian body, inner gloinerular zone.

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• Pig posterior cardinal veins
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References

Sabin FR. On the fate of the posterior cardinal veins and their relation to the development of the vena cava and azygos in the embryo pig. (1915) Pub. No. 223 Contrib. Embryol., Carnegie Inst. Wash. 3(7): 5-32. PDF

Cite this page: Hill, M.A. (2024, April 25) Embryology Sabin1915 plate01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Sabin1915_plate01.jpg

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