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bone

bone is a topic covered in the Taber's Medical Dictionary.

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(bōn)


1. A specialized form of dense connective tissue consisting of bone cells (osteocytes) embedded in a nonliving matrix; osseous tissue. Bone matrix is made of calcium carbonate, calcium phosphate, and collagen fibers.
SYN: SEE: os.
2. A unit of a skeleton. The human skeleton has 206 bones. Bones surround and protect some vital organs, give points of attachment for the muscles, and serve as levers that make movement possible. In the embryo, the bones of the skull are first made of fibrous connective tissue, which is gradually replaced by bone matrix. The remainder of the skeleton is first made of hyaline cartilage, which is also replaced by bone matrix (the acellular part of bone), beginning during the third month of gestation.
The outer surface of a bone is compact bone; the inner, more porous portion is cancellous (spongy) bone. Bone is covered by periosteum. The shafts of long bones are made of compact bone that surrounds a marrow cavity. Bones are classified according to shape as long, short, flat, or irregular. Older adults, esp. womem, may develop osteoporosis.
SEE: cancellous bone; SEE: compact bone; SEE: haversian system; SEE: long bone; SEE: membrane bone; SEE: periosteum;


PARTS OF A LONG BONE ; SEE: skeleton for names of principal bones

BONE TISSUE (Left) Femur with distal end sectioned; (Right) compact bone with haversian systems

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Citation

Venes, Donald, editor. "Bone." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/770856/all/replacement_bone.
Bone. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/770856/all/replacement_bone. Accessed June 17, 2019.
Bone. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://www.tabers.com/tabersonline/view/Tabers-Dictionary/770856/all/replacement_bone
Bone [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 June 17]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/770856/all/replacement_bone.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - bone ID - 770856 ED - Venes,Donald, BT - Taber's Medical Dictionary UR - https://www.tabers.com/tabersonline/view/Tabers-Dictionary/770856/all/replacement_bone PB - F.A. Davis Company ET - 23 DB - Taber's Online DP - Unbound Medicine ER -