Page 65 - Endokrin Sistem Histolojisi-Dr. Öğr. Üyesi Tuğçe Önel

• The principal (chief) cells differentiate during

embryonic development and are functionally

active in regulating fetal calcium metabolism.

• The oxyphil cells differentiate later at puberty.

• Failure of these structures to separate results in

the atypical association of the parathyroids with

the thymus in the adult.