Structure of Parathyroids 



17 



The parathyroid is composed of epithelium-like cells (figs. 7 to 13), which 

 either form a compact mass (fig. 7) or are divided up into lobules or 



FIG. 8. Section of parathyroid of dog. Magnified 400 diameters. This shows 

 a looser arrangement of the trubecula? than the gland represented in fig. 7. 

 On the right is part of one of the vesicles of the thyroid. 



FIG. 9. Section of parathyroid of man. Magnified 400 diameters. On the left is a strand 

 of eosinophil cells (e). (Figs. 8 and 9 are from specimens prepared by Dr Kojima.) 



trabeculse (fig. 8) by strands of connective tissue. These differences of 

 structural appearance may sometimes be observed even in different parts 

 of the same gland. The interstitial connective tissue conveys the vessels, 



2 



