Template:Congdon1922 table1

From Embryology
Embryo No. Length in mm Arches present Characteristic features
1878 1.3 1 slightly plexiform. Presomite stage
1201 2 1
391 2 1 7 somites
470 4 1 neuropore open; 14 to 16 somites
2053 3 1, 2 beginning Anterior neuropore closed; 20 somites; transverse anastomoses between primitive aortae
1201b 3 1, 2
836 4 2, 3 Earlier mandibular artery ; paired longitudinal neural arteries; no ventral tract on cord
  Just before establishment of fourth arch; estimated average length 4 mm; 31st day of development
826 5 3, 4 Earlier mandibular and hyoid arteries
1075 6 3, 4 Subclavian
588 4 3, 4 Earlier mandibular and hyoid arteries
873 6 3, 4 Ventral tract on cord
988 6 3, 4
1380 4 3, 4; pulmonary arches almost complete
2841 4 3, 4; one so-called fifth arch; pulmonary almost complete Early formation of basilar artery
  Just before completion of pulmonary arch; estimated average length 6 mm; 36th day of development
810 5 3, 4, and pulmonary arches Late stage in formation of basilar artery; Splitting of aortic sac distinct. Unpaired aorta complete
1354 6 3, 4, and pulmonary arches
617 7 3, 4, two so-called fifth arches, and pulmonary arches Subclavian artery surrounded by brachial plexus. Splitting of sac well marked
792 8 3, 4, and pulmonary arches Pulmonary and 4th arches widely separated below
1121 11 3, 4, and pulmonary arches Right pulmonary artery small; basilar rounded; 4th and pulmonary still further apart
721 9 3, 4, and pulmonary arches Cervical segmental arteries becoming interrupted
163 9 3, 4, and pulmonary arches Anastomoses of cervical segmental arteries to form the vertebral artery are nearly complete
  Time of interruption of pulmonary arch and branchial period; estimated average length 12 mm; 45th day of development
1771 13 3, 4, left pulmonary and remnant of right pulmonary arch
544 10
940 14
1909 15
492 16
74 16
  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 Keibel F. and Mall FP. Manual of Human Embryology II. (1912) J. B. Lippincott Company, Philadelphia. 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.
Carnegie Embryos - Cogdon (1922) - Arch Arteries 
Embryo No. Length in mm Arches present Characteristic features
1878 1.3 1 slightly plexiform. Presomite stage
1201 2 1
391 2 1 7 somites
470 4 1 neuropore open; 14 to 16 somites
2053 3 1, 2 beginning Anterior neuropore closed; 20 somites; transverse anastomoses between primitive aortae
Template:CE1201b 3 1, 2
Template:CE863 4 2, 3 Earlier mandibular artery ; paired longitudinal neural arteries; no ventral tract on cord
  Just before establishment of fourth arch; estimated average length 4 mm; 31st day of development
826 5 3, 4 Earlier mandibular and hyoid arteries
1075 6 3, 4 Subclavian
588 4 3, 4 Earlier mandibular and hyoid arteries
873 6 3, 4 Ventral tract on cord
988 6 3, 4
1380 4 3, 4; pulmonary arches almost complete
2841 4 3, 4; one so-called fifth arch; pulmonary almost complete Early formation of basilar artery
  Just before completion of pulmonary arch; estimated average length 6 mm; 36th day of development
810 5 3, 4, and pulmonary arches Late stage in formation of basilar artery; Splitting of aortic sac distinct. Unpaired aorta complete
1354 6 3, 4, and pulmonary arches
617 7 3, 4, two so-called fifth arches, and pulmonary arches Subclavian artery surrounded by brachial plexus. Splitting of sac well marked
792 8 3, 4, and pulmonary arches Pulmonary and 4th arches widely separated below
1121 11 3, 4, and pulmonary arches Right pulmonary artery small; basilar rounded; 4th and pulmonary still further apart
721 9 3, 4, and pulmonary arches Cervical segmental arteries becoming interrupted
163 9 3, 4, and pulmonary arches Anastomoses of cervical segmental arteries to form the vertebral artery are nearly complete
  Time of interruption of pulmonary arch and branchial period; estimated average length 12 mm; 45th day of development
1771 13 3, 4, left pulmonary and remnant of right pulmonary arch
544 10
940 14
1909 15
492 16
Template:CE74 16
  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 Keibel F. and Mall FP. Manual of Human Embryology II. (1912) J. B. Lippincott Company, Philadelphia. 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.