. A laboratory manual and text-book of embryology. Embryology. ^ THE DEVELOPMENT OF THE VASCULAR SYSTEM In embryos of 4 to 5 mm. the right portion of the sinus venosus grows more rapidly than the left, this being due to the fact that the blood flow of the left umbilical vein is shifted to the right side through the liver. As a result the en- larged right horn of the sinus opens into the right dorsal wall of the atrium through a longitudinally oval foramen, which is guarded on the right by a vertical Fig. 250.—A, heart of human embryo of mm. (His): a, bulbus cordis; b, primitive ven
. A laboratory manual and text-book of embryology. Embryology. ^ THE DEVELOPMENT OF THE VASCULAR SYSTEM In embryos of 4 to 5 mm. the right portion of the sinus venosus grows more rapidly than the left, this being due to the fact that the blood flow of the left umbilical vein is shifted to the right side through the liver. As a result the en- larged right horn of the sinus opens into the right dorsal wall of the atrium through a longitudinally oval foramen, which is guarded on the right by a vertical Fig. 250.—A, heart of human embryo of mm. (His): a, bulbus cordis; b, primitive ventricle; c, atrial portion. B, heart of human embryo of about 3 mm. (His): a, bulbus cordis; b, atrial portion (behind); c, primitive ventricle (in front).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Prentiss, Charles William, 1874-1915. Philadelphia, London, W. B. Saunders
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectembryology, bookyear1
