. Cunningham's Text-book of anatomy. Anatomy. Anterior cardinal vein Bulbus cordis Atrio-ventricular canal Sinus venosus. Ventricle Fig 827.â Ventral View of a Model of the Heart of a Human Embryo 2-5 mm. long. (Meyer's collection. Modelled by Professor P. Thompson.) .Anterior cardinal vein Right horn of sinus venosus sinu^v^no^ ! Intermediate part of sinus venosus Ventricle Fig. 828.âDorsal View of a Model of the Heart of a Human Embryo 2-5 mm. long. (Meyer's collection. Modelled by Professor P. Thompson.) o o^ â¢fa, tbP rieht and left ventricles of the adult heart; and the truncus arteriosus
. Cunningham's Text-book of anatomy. Anatomy. Anterior cardinal vein Bulbus cordis Atrio-ventricular canal Sinus venosus. Ventricle Fig 827.â Ventral View of a Model of the Heart of a Human Embryo 2-5 mm. long. (Meyer's collection. Modelled by Professor P. Thompson.) .Anterior cardinal vein Right horn of sinus venosus sinu^v^no^ ! Intermediate part of sinus venosus Ventricle Fig. 828.âDorsal View of a Model of the Heart of a Human Embryo 2-5 mm. long. (Meyer's collection. Modelled by Professor P. Thompson.) o o^ â¢fa, tbP rieht and left ventricles of the adult heart; and the truncus arteriosus, and intTthefoTXmbered heart of the adult are, therefore, comparatively simple, but the details heart formed bftbe fusion of thecal portions of the primitive ventral «£*«⢠£*. * caudal end two venous stems, each of which is the common termination of the lateral umbihcal Sthe vitelline vein, and the anterior cardinal veins of the same side (Fig. 819). At a later IS afte^ the heart Cbegun to fold on its longitudinal axis, the two common venous stems «re absorbed into the heart and form its most caudal section, the sinus venosus, which consists S of Cuvler At this period, therefore, each cornu of the sinus venosus receives three veins âthe vitelline vein, the lateral umbilical vein, and the duct oi Cuvier. portion of the sinus become reduced to the form of a comparativfyf^uShZbv a cleft ^H thXgM hor^of the sinus venosus is absorbed into the right part£â ^d^pojti^of the atrium the caudal or lower portion of right ^ J^£^e^g£ £ ^te^th wall of the right atrium, where it unites with the dorsal part of the caudaor mfeior portion of the septum secundum of the atrium, and takes part ^ the formation of the 1mbâ¢a ^ lower Whilst these changes have been proceeding the right duct of Cuvier has become me i part of the superior vena cava, the intermediate part of the "nus^MUB and the left comu are transformed into the coronary sinus, and the left duct
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
