Term
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Definition
-protect and support tissue
-anchor muscle
-produce red blood cells
-store fat
-reservoir for minerals |
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Term
| Sources of Skeletal Variation |
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Definition
-ontogeny
-sexual dimorphism
-geographic variation
-idiosyncratic variation |
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Term
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Definition
| the growth of an individual during their lifetime |
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Term
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Definition
connection between different skeletal elements
where bones articulate |
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Term
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Definition
-synovial
-cartilagenous (synchondrosis)
-fibrous (syndesmosis)
- |
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Term
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Definition
| Flexible joint characterized by a joint capsule or a sac of connective tissue. The bones are covered by cartilage, connected by ligaments and the joint space is fluid filled. |
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Term
Synchondrosis
Cartilagenous Joint |
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Definition
| A joint of limited flexibility in which bones are joined together by cartilage. An example would be the connection between the sternum and ribs. |
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Term
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Definition
| Completely inflexible joint between bones united by a dense fibrous tissue. An example would be the joint connecting the tibia and fibula. |
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Term
| Structural Components of Bone (2) |
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Definition
-compact (cortical)
-spongy (cancellous) |
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Term
|
Definition
-Epiphysis
-Diaphysis
-Metaphysis
-Perioseum
-Endosteum |
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Term
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Definition
| Ends of long bones, what articulates at joints |
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Term
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Definition
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Term
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Definition
| the growth plate, the flared part of a long bone |
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Term
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Definition
| osteogenic membrane on outer surface of the bone that contains bone forming cells |
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Term
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Definition
| osteogenic tissue that occurs on the inside of the bone containing bone forming cells |
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Term
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Definition
-90% protein in the form of collagen
-10% mineral(hydroxyapatite) |
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Term
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Definition
Law of Bone Transformation
-bone is laid down where needed and resorbed where not needed |
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Term
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Definition
| closely packed bundle of collagen fibers that act directly on bone via muscle(bone to muscle connection) |
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Term
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Definition
| bands or sheets of collagen that extend between bones (bone to bone connection) |
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Term
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Definition
-first type of bone laid down in utero and at fracture sites
-immature bone that is laid down quickly |
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Term
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Definition
-typical adult bone
-made by uniform appositional growth |
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Term
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Definition
| a system of canals that allow nutrients to penetrate compact bone |
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Term
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Definition
| set of concentric rings made up of rings of collagen fibers oriented in opposite directions |
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Term
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Definition
the hollow center (core) of each haversian system which allow blood, lymph and nerve fibers to penetrate compact bone
haversian canals are parallel to the surface of the long bone |
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Term
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Definition
| a series of canals that pierce the bone tissue at a right angle to the surface of the compact bone. They connect haversian canals and create a network that provides nutrients to the bone. |
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Term
| Lacuna (plural = Lacunae) |
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Definition
| small cavities with in each lamella that house a living bone cell |
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Term
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Definition
| a living bone cell (Is Bone) |
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Term
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Definition
| minute fluid filled channels that radiate from the central haversian canal to the lacunae, or from one lacuna to another, that allow the osteocyte to survive in such a heavily mineralized environment |
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Term
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Definition
| -bone forming cells responsible for synthesizing and depositing bone material. They make osteoid and deposit crystals of hydroxyapatite into it. Once the cell is surrounded by calcified tissue it is called an osteocyte. (Makes Bone) |
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Term
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Definition
| Pre-bone tissue made up of uncalcified organic tissue (mainly collagen) |
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Term
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Definition
| Responsible for resorption. (resprbs bone) |
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