. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. THE FORMATION OF THE HEART 235 atrial canal into a right and left half (Fig. 142). With the upper edge of this partition the thickened lower edge of the atrial septum unites, so that the separation of the atria would be complete were it not for the foramen SM Fig. 142.—Section through a Reconstruction of the Heart of a Rabbit Embryo of 10. i mm. Ad and Adu Right and As, left atrium; Bwx and Bw2, lower ends of the ridges which divide the aortic bulb; En, endocardial cushion;
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. THE FORMATION OF THE HEART 235 atrial canal into a right and left half (Fig. 142). With the upper edge of this partition the thickened lower edge of the atrial septum unites, so that the separation of the atria would be complete were it not for the foramen SM Fig. 142.—Section through a Reconstruction of the Heart of a Rabbit Embryo of 10. i mm. Ad and Adu Right and As, left atrium; Bwx and Bw2, lower ends of the ridges which divide the aortic bulb; En, endocardial cushion; and , thickenings of the cushion; la, interatrial and Iv, interventricular communication; Sv septum primum; Sd, right and Ss, left horn of the sinus venosus; , ventricular septum; SM, opening of the sinus venosus into the atrium; Vd, right and Vs, left ventricle; Vej, jugular vein; Vep, pulmonary vein; Vvd and Vvs, right and left limbs of the valve guarding the opening of the sinus venosus.—(Born.) While these changes have been taking place in the atrial portion of the heart, the separation of the right and left ventricles has also been progressing, and in this two distinct septa take part. From the floor of the ventricular cavity along the line of junction of the. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
