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Abstract

Single-cell-layered vesicles, which are almost similar in appearance to those derived from the peripheral part of the ultimobranchial body, are also produced from the third branchial pouch. They are found just in the neighborhood of the isthmus but not included within the isthmus or in the caudal extremity of the thyroid lobe. The third branchial pouch origin is more exactly confirmed by remaining combined directly with the parathyroid (III) gland (Fig. 25b). The other single-cell-layered vesicles which are near the isthmus and not combined with the parathyroid (III) gland are indistinguishable from those of ultimobranchial origin.

Keywords

Thyroid Lobe Cell Cord Caudal Extremity Primordial Cell Cystic Follicle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 1971

Authors and Affiliations

  • Shooichi Sugiyama
    • 1
  1. 1.Nagoya University School of MedicineShowa-Ku NagoyaJapan

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