The Paraneuron pp 145-150 | Cite as

Parafollicular Cells

  • Tsuneo Fujita
  • Tomio Kanno
  • Shigeru Kobayashi


The thyroid gland consists of follicles producing triiodothyronine (T3) and tetraiodothyronine or thyroxine (T4). As a second endocrine element, the thyroid contains clear cells dispersed solitarily or in small groups in and between the epithelial walls of the follicles. These cells, called parafollicular cells or C cells (from clear cells), are the source of the blood calcium level-lowering hormone, calcitonin (reviews: Nunez and Gershon 1978b; Ericson and Sundler 1984).


Secretory Granule Follicular Cell Thyroid Follicular Cell Parafollicular Cell Neuroectodermal Origin 
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Copyright information

© Springer-Verlag Tokyo 1988

Authors and Affiliations

  • Tsuneo Fujita
    • 1
  • Tomio Kanno
    • 2
  • Shigeru Kobayashi
    • 3
  1. 1.Department of AnatomyUniversity of Niigata School of MedicineNiigataJapan
  2. 2.Department of Physiology Faculty of Veterinary MedicineHokkaido UniversitySapporoJapan
  3. 3.Department of AnatomyYamanashi Medical CollegeTamaho,YamanashiJapan

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