- perichondral bone
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formed from an ossification starting at the perichondrium of a cartilage and rapidly extending internally. Also called chondral or endochondral bones
Dictionary of ichthyology. 2009.
perichondral bone
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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
perichondral — |perə|kändrəl adjective Etymology: peri + chondr + al : occurring about or surrounding cartilage used chiefly of bone and bone formation occurring peripherally beneath the perichondrium of a cartilage; compare endochondral … Useful english dictionary
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
parethmoid bone — a paired deep bone of perichondral origin lying in the front of the orbit under the prefrontal. Also called pleurethmoid, lateral ethmoid, prefrontal, exethmoid, and also ectethmoid (latter only present in birds so not be be used in fishes) … Dictionary of ichthyology
Periosteum — The periosteum is a dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone, except that of the articulating surfaces in joints which are covered by a synovial membrane. Peri is a prefix borrowed from the Greek… … Medical dictionary
Osteostraci — Temporal range: 428–359 Ma … Wikipedia
capsular ethmoid — a paired perichondral bone on the inner concave walls of the nasal capsule … Dictionary of ichthyology
myodome — 1) a cavity in the skull under the brain in the postorbital region of the skull in which lodge the rectus muscles (anterior, posterior, superior and inferior) of the eye and, anteriorly, the ethmoid for anchoring the oblique muscle (superior and… … Dictionary of ichthyology
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
