File:Nelsen1953 fig246.jpg

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Fig. 246. Development of body form in human embryo

(A) Early neural fold stage. Somites are beginning to form; notochordal canal is evident.

(B) About nine pairs of somites.

(C) His's embryo M.

(D) About 23 pairs of somites, 4-5 mm. long.

(E) About 35 pairs of trunk somites, 12 mm. long.

(C from Keibel and Mall: Manual of Human Embryology, Vol. I, 1910. Philadelphia and London, Lippincott. A, B, D, and E from Keibel and Elze: Normentafel zur Entwicklungsgeschkhte des Menschen. Jena, 1908. G. Fischer.)

Reference

Nelsen OE. Comparative embryology of the vertebrates (1953) Mcgraw-Hill Book Company, New York.


Cite this page: Hill, M.A. (2024, April 19) Embryology Nelsen1953 fig246.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Nelsen1953_fig246.jpg

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