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The bones that form the longitudeinal axis of the body. Contains the skull, vertebral column, and bony thorax.
The bones of the limbs and gridles
Function of bones:
- 1. Support
- 2. Protection
- 3. Movement
- 4. Storage- fat, minerals, (Ca and P)
- 5. Blood cell formation - in marrow cavities of certain bones (hematopoiesis)
How many bones do adult have?
Dense bone that looks smooth and homogenous
Bone composed of small needlelike pieces of bone and lots of open space
Bone that is cube shaped and contain mostly spongy bone
Bone that is thin, flattened, and usually curved
Bones that don't fit anywhere else
Prebone is called?
The formation of bone
Gaint bone-destroying cells in bones, to break down bone and release calcium ions into the blood
_____ releases PTH into the blood and activates osteoclasts
A break that does not penetrate the skin
Closed (Simple) Fracture
Broken bone that penetrates through the skin
Open (Compound) Fracture
Fracture in which bone breraks into many fragments. Particularly common in the aged, whose bones are more brittle.
Fracture in which bone is crushed. Common in porous bones.
Fracture in which broken bone portion is pressed inward. Typical of skull fracture.
Fracture in which broken bone ends are forced into each other. Commonly occurs when one attempts to break a fall with outstretched arms.
Fracture in which ragged break occurs when exccessive twisting forces are appplied to a bone. Common in sport fractures
Fracture in which bone break incompletely. Common in children, whose bones are more flexible than those of adults
Four steps of bone fracture repair:
- 1. Hematoma (blood-filled swelling) is formed.
- 2. Fibrocartilage callus formation
- 3. Bony callus formation
- 4. Bone remodeling
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