Supported by National Science Foundation grant GB-2476 and NICHD grant 5T1-HD-21.
Cytology of the fetal zone of the adrenal gland of the armadillo†
Version of Record online: 3 FEB 2005
Copyright © 1966 Wiley-Liss, Inc.
The Anatomical Record
Volume 154, Issue 4, pages 807–821, April 1966
How to Cite
Enders, A. C., Schlafke, S. and Warren, R. (1966), Cytology of the fetal zone of the adrenal gland of the armadillo. Anat. Rec., 154: 807–821. doi: 10.1002/ar.1091540409
- Issue online: 3 FEB 2005
- Version of Record online: 3 FEB 2005
The fine structure of the adrenal gland of the fetal armadillo was examined by electron microscopy to determine whether or not there were two cell types in the parenchyma of the fetal zone, as suggested by examination by light microscopy, and whether any of the cells of this zone had the cytological features associated with steroid production.
Two cell types were found. One cell type is composed of large cells situated in clusters and containing a relative paucity of organelles. The other cell type is composed of smaller, eosinophilic, PAS positive cells, situated primarily in a reticular pattern around the blood vessels. This second cell type has numerous spherical mitochondria with tubular cristae and an extensive tubular agranular endoplasmic reticulum. It is concluded that this latter cell type is responsible for the steroid production reported by other authors. Both of the cell types of the fetal zone appear to be derived from the original mesenchymal blastema of the adrenal gland.