. The American journal of anatomy . 30 Fig. 29 Coronal section to show the position of the atrio-ventricular 16 mm. long (No. 409). X 18. Fig. 30 Coronal section, well dorsalwards, to show the extension of the atrio-ventricular muscle to the coronary sinus. Embryo mm. long (No. 423).X 15. The spaces around the bundle in embryos from 10 to 20 appear to continue in the adult; possibly they form the bursaof the bundle described by Curran38 and the spaces which encirclethe Purkinje fibers. Brilliant injections of these have been madeby In an embryo 34 mm. long,
. The American journal of anatomy . 30 Fig. 29 Coronal section to show the position of the atrio-ventricular 16 mm. long (No. 409). X 18. Fig. 30 Coronal section, well dorsalwards, to show the extension of the atrio-ventricular muscle to the coronary sinus. Embryo mm. long (No. 423).X 15. The spaces around the bundle in embryos from 10 to 20 appear to continue in the adult; possibly they form the bursaof the bundle described by Curran38 and the spaces which encirclethe Purkinje fibers. Brilliant injections of these have been madeby In an embryo 34 mm. long, No. 249, the atrio-ventricular bun-dle is chiefly muscular as it passes to the ventricle. Near the sinus 36 Curran, A constant bursa in relation with the bundle of His. Anat. Rec,vol. 3, 36 Lhamon, The sheath of the sino-ventricular bundle. .Amer. Jour. Anat.,vol. 13, 1912. 292 FRANKLIN P. MALL it is invaded by nerve cells. From now on there is a change in thestructure which is well shown in two foetuses 50 mm. long (
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912
