View source for Thyroid epithelial cell

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==Overview==
[[Image:Gray1176.png|thumb|250px|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 [[epithelium|cuboidal epithelium]]<ref>{{USCHistology|end/c_26}}</ref> and are arranged in spherical follicles surrounding colloid.

They have [[thyrotropin receptor]]s on their surface, which respond to [[thyroid-stimulating hormone]].

Embryologic origin is from endoderm (in contrast to parafollicular cells, below).
==Relationship to other cell types==
[[Calcitonin]]-producing [[parafollicular cell]]s (C cells) can be found scattered along the [[basement membrane]] of the thyroid epithelium.
Embryologic origin is from neural crest cells.

==References==
<references/>

==External links==
* {{AnatomyAtlasesMicroscopic|15|287}}
* {{BUHistology|14302loa}}


{{Endocrine system}}

[[Category:Endocrine cells]]
[[Category:Endocrinology]]

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