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ossification

ossification The formation of bone tissue, which is ultimately derived from neural crest cells. The process is unique to vertebrates and differs from dentine formation in that it allows the continued existence of the mineralizing cells (osteoblasts) which reside in the lacunae of bone connected to each other by canalicula. Ossification is carried out by osteoblasts, which become arranged concentric to blood vessels (Haversian canals) to form cylindrical Haversian systems. The resulting bone, together with its series of Haversian systems, is encased in outer lamellae of bone plates and is then known as lamellar bone. Bone tissue may originate from the dermis of the integument giving rise to dermal bone, or occur by endochondrial ossification, which is the invasion and replacement of cartilagenous tissue with osteoblasts and subsequently bone.

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"ossification." A Dictionary of Zoology. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossification." A Dictionary of Zoology. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ossification

"ossification." A Dictionary of Zoology. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ossification

ossify

os·si·fy / ˈäsəˌfī/ • v. (-fies, -fied) [intr.] turn into bone or bony tissue: these tracheal cartilages may ossify. ∎  [often as adj.] (ossified) fig. cease developing; be stagnant or rigid: ossified political institutions. DERIVATIVES: os·si·fi·ca·tion / ˌäsəfiˈkāshən/ n.

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"ossify." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossify." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify-0

"ossify." The Oxford Pocket Dictionary of Current English. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify-0

ossification

ossification (osteogenesis) (oss-i-fi-kay-shŏn) n. the formation of bone, which takes place in three stages by the action of osteoblasts. A meshwork of collagen fibres is deposited in connective tissue, followed by the production of a cementing polysaccharide. Finally the cement is impregnated with minute crystals of calcium salts. The osteoblasts become enclosed within the matrix as osteocytes.

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"ossification." A Dictionary of Nursing. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossification." A Dictionary of Nursing. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/ossification

"ossification." A Dictionary of Nursing. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/ossification

ossification

ossification The process of bone formation. It is brought about by the action of special cells called osteoblasts, which deposit layers of bone in connective tissue. In intramembranous ossification bones are formed directly in connective tissue (see membrane bone); in endochondral ossification the bones are formed by the replacement of cartilage (see cartilage bone).

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"ossification." A Dictionary of Biology. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossification." A Dictionary of Biology. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ossification-0

"ossification." A Dictionary of Biology. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ossification-0

ossification

ossification (osteogenesis) Process of bone formation in vertebrates. Bone is formed through the action of special cells called osteoblasts, which secrete bone-forming minerals that combine with a network of tough protein collagen fibres.

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"ossification." World Encyclopedia. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossification." World Encyclopedia. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/ossification

"ossification." World Encyclopedia. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/ossification

ossify

ossify XVIII. — F. ossifier, f. L. os, oss- bone; see OSSEOUS, -IFY.
So ossification XVII.

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"ossify." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossify." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify-1

"ossify." The Concise Oxford Dictionary of English Etymology. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify-1

ossify

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"ossify." Oxford Dictionary of Rhymes. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"ossify." Oxford Dictionary of Rhymes. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify

"ossify." Oxford Dictionary of Rhymes. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ossify