File:Meyer1914 fig21-23.jpg

Fig. 21. Distal extremity of round ligament from a kitten 24 days old. No remnant of the umbilical vein is present in the vascular connective tissue. X142.

Fig. 22. Round ligament of a kitten 14 to 18 days old. No recognizable 1'eminant of the umbilical Vein is present. The ligament is composed of a very loose connective tissue not unlike embryonic connective tissue which looks gelatinous. X54.

Fig. 23 Transverse section from the free caudal border. of suspensory ligament of the cat, containing a. large vein with nothing but an endothelial wall bounded by connective tissue. This vein bears no resemblance to the remnant of the umbilical vein. X142.