. The American journal of anatomy . section 21), X 120. 2, thoracic duct approach,and its original venous intima replaced by a large space (4), 3a, b, c, d, c, lymphaticplexus replacing as extra-intimal spaces the precardinal veno-lymphatic plexus;9, internal jugular; 13, wall of the aorta; 15, vagus; 17, oesophagus; 18, trachea.(Reconstruction, fig. 32.) Fig. 9 An accurale camera Lucida drawing of a highly magnified area of thesection represented in figure 8, X 266 (reduced from X 400). 3a, l>, c, d, cross-sec-tions of the extra-intimal lymphatic plexus replacing the anterior precardinalve


. The American journal of anatomy . section 21), X 120. 2, thoracic duct approach,and its original venous intima replaced by a large space (4), 3a, b, c, d, c, lymphaticplexus replacing as extra-intimal spaces the precardinal veno-lymphatic plexus;9, internal jugular; 13, wall of the aorta; 15, vagus; 17, oesophagus; 18, trachea.(Reconstruction, fig. 32.) Fig. 9 An accurale camera Lucida drawing of a highly magnified area of thesection represented in figure 8, X 266 (reduced from X 400). 3a, l>, c, d, cross-sec-tions of the extra-intimal lymphatic plexus replacing the anterior precardinalveno-lymphatics; the absence of any specialized endothelium in the wall of thelymphatic spaces is plainly evident; the strands of mesenchyme jutting into theircavities suggest the breaking down of contiguous spaces in the formation of thelymphatic plexus; 6a, the collapsed venous intima of the abandoned veno-lympha-tics; 9, wall of the internal jugular; 14, sympathetic nerve trunk and branch. THORACIC DUCT DEVELOPMENT IN THE PIG 429. 5 ■ i il its •••■■^%--


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912