Card Set Information
Types/Function of Bones
Macrostructure of Bones
The covering of the bone and where the blood is supplied.
The shaft of the bone.
The growth plates (right above and below the diaphysis).
The covering on the inside of the bone (lining the medullary cavity). It restructures the bone and blood cells are made there.
Marrow cavity of the bone. Middle of the shaft where bone marrow is produced.
Breakdown of bone
Undifferentiated cells in which the osteoblasts are derived.
80% of the skeleton
Outer layer of th ebone
Slower turnover rate (takes time to build up)
Cancellous Bone (spongy)
Higher turnover rate
Inside layer of bone
Scaffolding of the bone
Bone remodel in response to mechanical stress
(example of Wolf's Law)
It is the generation of electricity through mechanical stresses.
Compression of the bone (electronegative)
: stimulates Osteoblasts
: stimulates Osteoclasts
: (the outer shell...of what?)
5-10% of cardiac output to the skeletal system
Nutrient Artery System
: branches from major arteries and enters through diaphyseal cortex
: supplies out 1/3 of cortical bone
5 basic types:
: develop in tendons or ligaments. Helps to move the muscles and joints
Sutural Bones: in joint between skull bones