title: An electron microscopic study of the histogenesis of the ultimobranchial body and of the C-cell system in the sheep.
mesh_terms: D000818:Animals; D002339:Carotid Arteries / Q000196:embryology; D002454:Cell Differentiation; D002462:Cell Membrane; D003594:Cytoplasmic Granules; D004847:Epithelial Cells; D004848:Epithelium / Q000032:analysis; D005260:Female; D005865:Gestational Age; D006003:Glycogen / Q000032:analysis; D006056:Golgi Apparatus; D008854:Microscopy, Electron; D008928:Mitochondria; D010280:Parathyroid Glands / Q000166:cytology / Q000196:embryology; D010614:Pharynx / Q000032:analysis / Q000166:cytology / Q000196:embryology; D011247:Pregnancy; D012270:Ribosomes; D012756:Sheep / Q000196:embryology*; D013961:Thyroid Gland / Q000032:analysis / Q000166:cytology / Q000196:embryology; D014132:Trachea / Q000032:analysis; D014460:Ultimobranchial Body / Q000166:cytology / Q000196:embryology*
chemical_list: D006003:Glycogen