Abstract

ABSTRACT Epithelial body III of Tiliqua occipitalis and Trachysaurus rugosus has been the subject of a histological and cytochemical investigation with the object of making a comparison with the mammalian parathyroid gland. The cytochemical reactions of the reptilian chief cell are similar to those of the mammalian ‘pale principal’ cell. On the basis of a series of cytological and cytochemical changes a secretory cycle commencing with the chief cell and culminating in the water-clear cell is postulated. Two further cell types distinguished as the dark cell and the ‘epithelial’ cell have been described in the reptilian epithelial body. The significance of these two cell types is discussed. There is some evidence suggesting that true sinusoids invest the cellular cords. There is no evidence, with the technique used, that the gland cells are innervated. It is suggested that the general histology is comparable to that of the mammalian parathyroid gland.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.