Electron Microscopic Study of the Parathyroid Gland of the Gecko, Gekko japonicus, in the Spring and Summer Season

Abstract

The ultrastructure of the parathyroid glands of geckos (Gekko japonicus) in the spring and summer season was examined. The parenchyma of the gland consists of chief cells arranged in cords or solid masses. Many chief cells contain numerous mitochondria and free ribosomes, prominent Golgi complexes, abundant granular endoplasmic reticulum and some secretory granules. These features suggest active parathyroid function in the gecko during the spring and summer season.
Large aggregations of glycogen particles are present in the spring and summer season, Myelinlike structures are present in the spring season.