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Development of the amphibian heart

The early differentiated heart consists of a simple tube which becomes divided into three chambers. The fused pair of vitelline veins becomes the meatus venosus which empties into the first division of the heart, the sinus venosus. Then follows (more anteriorly) the thinwalled atrium, the thick-walled ventricle, and finally the bulbus arteriosus (bulbus aortae) which leads to the ventral aorta or truncus arteriosus.


Links: The Frog Heart



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Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms and interpretations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
Frog Development (1951): Introduction | Rana pipiens | Reproductive System | Fertilization | Cleavage | Blastulation | Gastrulation | Neurulation | Early Embryo Changes | Later Embryo or Larva | Ectodermal Derivatives | Endodermal Derivatives | Mesodermal Derivatives | Summary of Organ Appearance | Glossary | Bibliography | Figures

Reference

Rugh R. Book - The Frog Its Reproduction and Development. (1951) The Blakiston Company.


Cite this page: Hill, M.A. (2018, September 20) Embryology Rugh 157.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Rugh_157.jpg

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© Dr Mark Hill 2018, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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