. The American journal of anatomy . 13. 428 OTTO F. KAMPMEIER lumina of the replacing lymph vessels (3a, b, c, d, e), the photo-graph suggests the method by which the latter enlarge, as wellas their mode of origin. The anlage at 3e (fig. 8) presents anexcellent initial stage in which the endothelium of the blood chan-nel has receded from the original circumference and two smallmesenchymal vacuoles have appeared one on each side of thepoints of weakness. On the other hand, the anlage at 3a, thechannel of the lymphatic plexus nearest to the lymph sac andinternal jugular vein (9), is very large a
. The American journal of anatomy . 13. 428 OTTO F. KAMPMEIER lumina of the replacing lymph vessels (3a, b, c, d, e), the photo-graph suggests the method by which the latter enlarge, as wellas their mode of origin. The anlage at 3e (fig. 8) presents anexcellent initial stage in which the endothelium of the blood chan-nel has receded from the original circumference and two smallmesenchymal vacuoles have appeared one on each side of thepoints of weakness. On the other hand, the anlage at 3a, thechannel of the lymphatic plexus nearest to the lymph sac andinternal jugular vein (9), is very large and irregular and hasincreased in size obviously by the coalescence of several closely-crowded spaces, as indicated by the extremely ragged peripheryof its lumen and the remnants of tissue traversing it. The lymphatic plexus just described is widely confluent withthe jugular lymph sac (fig. 29) through the thoracic duct approach(2). The reader will recall that this structure, the approach, is apart of the sac and has its origin with it.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912
