title: An electron microscopic study of the ultimobranchial body of the sheep embryo.
mesh_terms: D000818:Animals; D002116:Calcitonin / Q000378:metabolism; D004847:Epithelial Cells; D008854:Microscopy, Electron; D010614:Pharynx / Q000196:embryology; D012756:Sheep; D013961:Thyroid Gland / Q000196:embryology*
chemical_list: D002116:Calcitonin