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Fig. 5 A reconstruction on the midsagittal plane of the fourteen—somite Embryo

Embryo of Wallin (’13), Carnegie Coll. no. 1201a. The levels of the sections shown as figures 2d and 9c (Bartelmez, ’22), are indicated. ch.op.?, probable chiasma ridge; c1'.neur., occipital neural crest; cr.neur.roat., the part of the rostral neural crest which extends laterally to the trigeminal thickening of the ectoderm; hep. , anlage of the liver;, pharyngeal membrane; mesen. 1 and 2, mesencephalic neuromeres;, acoustico-facial crest; pr.op., optic primordium; rh./11, segment from which the so-called first and second rhombomeres are derived; rh.3 to 7, third to seventh definitive rhombomeres; I , ectodermal contact of the second visceral pouch; 3.1, first somite; thy., anlage of median thyroid.

Online Editor - Carnegie Collection Embryo 1201 with 13 somites should correspond to Carnegie stage 10. This embryo has been previously described Wallin IE. A human embryo of thirteen somites. (1913) Amer. J Anat. 15(3): 319-331.

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Links: fig 1 | fig 2 | fig 3 | fig 4 | fig 5 | fig 6 | Bartelmez 1923 | Neural


Bartelmez GW. The subdivisions of the neural folds in man. (1923) J. Comp. Neural., 35: 231-247.

Cite this page: Hill, M.A. (2024, February 29) Embryology Bartelmez1923 fig05.jpg. Retrieved from

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