Functions
internal framework and structure of the body, anchors all soft organs
Support
Number of Cervical Vertebrae
7
Site of hematopoisis
The cell type which is responsible for basic bone formation is the
osteoblast
Compact bone is characterized by _, whereas spongy bone is characterized by _.
dense tissue that looks smooth and homogenous; small needlelike pieces of bone and lots of open space
bones protect soft organs, ex: skull protects brain, vertebrae protect spinal cord
Protection
Number of Thoracic Vertebrae
12
Long bones have a distinctive _ that makes up most of the bone’s length and is composed of compact bone.
Diaphysis
Bone cells are arranged in concentric circles around longitudinal tubes containing blood vessels. These are called _.
Haversian system
Osteon is also acceptable
The only freely moveable bone in the skull is the
mandible
attachments to skeletal muscles allow for movement
Movement
Number of Lumbar vertebrae
5
Area that causes lengthwise growth in kids
Epiphyseal Plate
Hole like structure in the Haversian system that carries blood vessels and nerves through bone
Haversian canal
Red bone marrow functions to _, whereas yellow marrow functions to _.
produce blood cells; store fat
fat is stored in yellow marrow and minerals such as Calcium and Phosphorus are stored in bone
Storage
Name of fused the 5 fused coxal bones
Sacrum
Found around the outside of the long bone
Periosteum
These are activated by PTH when calcium levels in the blood are low
osteoclasts
Common in children. This is fracture when the bone bends and either has a slight visible break or several microscopic breaks that are not detectible on an x ray.
Greenstick
blood cell formation occurs in red marrow of certain bones
Hematopoiesis
Coccyx
Location of Yellow Marrow
Medullary Cavity
Tunnel like structures that radiate to lacunae to supply bone with nutrients
Canaliculi
A fracture where the bone is protruding out of the skin.
Compound / Open