Template:Congdon1922 table1

From Embryology
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Embryo No. Length in mm Arches present Characteristic features
1878
1201
391
470
2053
1201b
836
Just before establishment of fourth arch; estimated average length 4 mm; 31st day of development
826
1075
588
873
988
1380
2841
Just before completion of pulmonary arch; estimated average length 6 mm; 36th day of development
810
1354
617
792
1121
721
163
Time of interruption of pulmonary arch and branchial period; estimated average length 12 mm; 45th day of development
1771
544
940
1909
492
74|- End of period of rapid descent of heart and arteries; estimated average length 18 mm; 50th day of development
1390
460
2937
886
Estimates based on Mall FP. On the development of the human heart. (1912) Amer. J Anat. 13: 249-298. curve of length and age.
Reference: Congdon ED. Transformation of the aortic-arch system during the development of the human embryo. (1922) Contrib. Embryol., Carnegie Inst. Wash. Publ 277, 14:47-110.