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Revision as of 13:45, 23 October 2010 by S8600021 (talk | contribs) (==Neural Groove== A series of transverse sections through an embryo of the dog. (After Bonnet.) The series shows the uprising of the neural folds to form the neural canal. Section I is the most anterior. In V the neural plate is spread out nearly fla)
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Neural Groove

A series of transverse sections through an embryo of the dog. (After Bonnet.)

The series shows the uprising of the neural folds to form the neural canal.

Section I is the most anterior. In V the neural plate is spread out nearly flat.

In III, IV, and V the scattered cells represented between the entoderm and splanchnic layer of mesoderm

are the vasoformative cells which give origin in front, according to Bonnet, to the heart tubes, 

h; l.p. Lateral plate still undivided in I, II, and III; in IV and V split into somatic (sm) and splanchnic (sp) layers

of mesoderm. 

Legend

  • a. Aortæ.
  • c. Intermediate cell mass.
  • ect. Ectoderm.
  • ent. Entoderm. (endoderm)
  • h. Rudiments of endothelial heart tubes.
  • mes. Mesoderm.
  • p. Pericardium.
  • so. Primitive segment. (somite)

Template:Gray

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current13:45, 23 October 2010Thumbnail for version as of 13:45, 23 October 2010800 × 682 (111 KB)S8600021 (talk | contribs)==Neural Groove== A series of transverse sections through an embryo of the dog. (After Bonnet.) The series shows the uprising of the neural folds to form the neural canal. Section I is the most anterior. In V the neural plate is spread out nearly fla

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