title: Ultrastructural aspects after cryoultramicrotomy of bone tissue and sutural cartilage in neonatal mice calvaria.
abstract: Using transmission electron microscopy after cryoultramicrotomy, mineralized as well as unmineralized bone tissues and sutural cartilage were observed in neonatal mice calvaria. A good definition of osteoblasts (nucleus, membranes, organelles) and extracellular constituents (collagen fibrils, matrix vesicles, mineral substance) was obtained. The sutural zone was composed of an unmineralized cartilaginous tissue with more or less hypertrophic cells surrounded by a finely fibrillar matrix.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology*; D001842:Bone and Bones / Q000378:metabolism / Q000648:ultrastructure*; D002356:Cartilage / Q000378:metabolism / Q000648:ultrastructure*; D005629:Frozen Sections; D051379:Mice; D008854:Microscopy, Electron; D008867:Microtomy; D008903:Minerals / Q000378:metabolism; D010006:Osteoblasts / Q000648:ultrastructure
chemical_list: D008903:Minerals