Thyroid epithelial cell

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Section of thyroid gland of sheep. X 160. ("Cubical epithelium" labeled at center left.)
Section of thyroid gland of sheep. X 160. ("Cubical epithelium" labeled at center left.)

Thyroid epithelial cells (also called follicular cells or principal cells) are cells in the thyroid gland which produce and secrete thyroxine (T4) and triiodothyronine (T3).

They are simple cuboidal epithelium[1] and are arranged in spherical follicles surrounding colloid.

They have thyrotropin receptors on their surface, which respond to thyroid-stimulating hormone.

Embryologic origin is from endoderm (in contrast to parafollicular cells, below).

Calcitonin-producing parafollicular cells (C cells) can be found scattered along the basement membrane of the thyroid epithelium. Embryologic origin is from neural crest cells.

  1. ^ Histology at USC end/c_26

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v • d • e
Human anatomy, endocrine system: endocrine glands
Hypothalamic/pituitary axes Adrenal axis: Adrenal gland

Thyroid axis: Thyroid gland (Parafollicular cell, Thyroid epithelial cell) - Parathyroid gland (Oxyphil cell, Chief cell)

Gonadal axis: Testes - Ovaries - Corpus luteum
Other Pineal gland • Islets of pancreas
Retrieved from "http://en.wikipedia.org/wiki/Thyroid_epithelial_cell"
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