- perichondral ossification
- ossification that occurs in a layered manner beneath the perichondrium or, later, the periosteum.
Medical dictionary. 2011.
Medical dictionary. 2011.
perichondral bone — formed from an ossification starting at the perichondrium of a cartilage and rapidly extending internally. Also called chondral or endochondral bones … Dictionary of ichthyology
perichondral — peri·chon·dral .per ə kän drəl adj relating to, formed by, or being ossification that occurs peripherally beneath the perichondrium of a cartilage compare ENDOCHONDRAL, INTRAMEMBRANOUS (1) … Medical dictionary
First pharyngeal arch — First branchial arch Diagram showing the regions of the adult face and neck related to the fronto nasal process and the branchial arches … Wikipedia
Plesiosauria — Saltar a navegación, búsqueda ? Plesiosauria Rango fósil … Wikipedia Español
Bone — is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body … Medical dictionary
OS — Seuls constituants du corps des Vertébrés qui soient normalement préservés après la mort grâce à leur minéralisation élevée, les tissus du squelette (os, dents, cartilages) ont été longtemps considérés comme formant la charpente inerte de… … Encyclopédie Universelle
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
cartilage bone — bone formed by the ossification (osteogenesis) of a cartilaginous precursor. Cartilage bones can be classed as parachondral, epichondral or endochondral depending on whether ossification starts in connective tissue surrounding the cartilage, in… … Dictionary of ichthyology
ANIMAL (RÈGNE) - Évolution animale — La notion d’histoire du règne animal est relativement récente dans la pensée scientifique. Après la Renaissance, les premiers naturalistes cherchaient seulement à mettre de l’ordre dans nos connaissances en comparant les caractères des divers… … Encyclopédie Universelle