Functions
This function provides structural framework for the body.
Support
The two types of bone tissue.
compact and spongy bone
bone-building cells
osteoblasts
Bone formation from fibrous membranes.
intramembranous ossification
A fracture that does not break the skin.
closed fracture
This function shields organs like the brain and heart.
Protection
The shaft of a long bone
diaphysis
bone-resorbing cells
osteoclasts
Bone formation from cartilage models
endochondral ossification
A fracture that breaks through the skin.
an open fracture
This function allows bones to act as levers with muscles.
Movement
The ends of a long bone
epiphyses
Mature bone cells that maintain matrix.
osteocytes
Region responsible for bone lengthening
epiphyseal plate
A fracture with many bone fragments.
a comminuted fracture
This function involves storing calcium and phosphate.
Mineral Storage
The structural unit of compact bone.
an osteon
organic portion of bone matrix
collagen
Hormone that increases blood calcium.
parathyroid hormone (PTH)
The first stage of fracture healing.
hematoma formation
This function occurs in red marrow.
hematopoiesis (blood cell production)
The central canal within an osteon.
the Haversian (central) canal
Inorganic mineral component of bone matrix.
hydroxyapatite
Hormone that lowers blood calcium.
calcitonin
The stage where bone is reshaped to original form.
remodeling