autoradiograms prepared from cross sections through the neck region revealed nuclear concentration of radioactivity strongest in parathyroid chief cells , occasionally in thyroid follicular epithelial and interfollicular cells , in the epithelium of tubular remnants of the ultimobranchial body , in epithelium of the esophagus , in chondrocytes of tracheal cartilage , and in myoepithelial cells of tracheal glands .
C0007634
cells
C0225369
chondrocytes