. Cunningham's Text-book of anatomy. Anatomy. 1032 THE VASCULAE SYSTEM. part of tlie cephalic limb of the loop become placed transversely (Fig. 827), but after a short period its ventricular extremity again passes caudallv until the original cephalic limb of the loop lies to the ri<dit and somewhat ventral to the original dorsal limb. Still later, the bulbus cordis is partly absorbed into the truncus arteriosus and partly into the ventricle ; the right secmient of the sinus venosus is absorbed into the atrium, and the left segment forms the coronary sinus. At a still later period the atrium
. Cunningham's Text-book of anatomy. Anatomy. 1032 THE VASCULAE SYSTEM. part of tlie cephalic limb of the loop become placed transversely (Fig. 827), but after a short period its ventricular extremity again passes caudallv until the original cephalic limb of the loop lies to the ri<dit and somewhat ventral to the original dorsal limb. Still later, the bulbus cordis is partly absorbed into the truncus arteriosus and partly into the ventricle ; the right secmient of the sinus venosus is absorbed into the atrium, and the left segment forms the coronary sinus. At a still later period the atrium is divided, by intra-atrial septa into right and left atria. The atrio-ventricular canal becomes converted into the_ right and left atrio- ventricular apertures. The ventricle, including the absorbed portion oi the bulbus cordis, is Ventricle Truncus arteriosus Truncus arteriosus Ventricle Atrium. Anterior cardinal vein Bulbus cordis Atrio-ventricular canal Sinus venosus. 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 Cunningham, D. J. (Daniel John), 1850-1909; Robinson, Arthur, b. 1862, ed. New York, W. Wood
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