Bone new
Zones of the epiphyseal plate
Ossification
Anatomy of bones
Bone general
100
With this type of fracture the skin is penetrated 

What is open/compound? 

100

This zone is where the surrounding cartilage matrix calcifies which causes the chondrocytes to die and deteriorate.  

What is the calcification zone? 

100
This type of ossification requires a hyaline cartilage model. 

What is endochondral ossification? 

100

This is the shaft of long bones. 

What is the diaphysis? 

100

This type of bone growth is growth in the width of bone. 

What is appositional growth? 
200

With this type of fracture, the bone ends retain their normal position 

What is non displaced? 

200

This is the inactive zone of cartilage located on the epiphyseal side. 

What is the resting zone? 

200

The clavicle is made by this type of ossification. 

What is intramembranous ossification?

200

This are the structural repeating units of compact bone. 

What are osteons? 

200

This hormone is the most important at stimulating activity of the epiphyseal plate for babies and children. 

What is growth hormone? 

300

This type of disease involves excessive or haphazard bone deposits that lead to a higher spongy to compact bone ratio 

What is Paget's disease?

300

This is the zone where chondroblasts actively undergo mitosis. 

What is the proliferation zone? 

300

This type of ossification begins with a fibrous connective tissue membrane formed by mesenchymal cells. 

What is intramembranous ossification. 

300

Rings of extracellular matrix that radiate away from the central canal of the osteon. The collagen in each one runs in a different direction which results in increased resistance to stress. 

What is a Lamellae? 

300

This is the term for adjacent osteoblasts and osteoclasts that work together to change bone. 

What is a remodeling unit? 

400

With this bone disease, the bones are poorly mineralized due to inadequate intake of calcium salts leading to soft weak bones

What is osteomalacia?

400

This is the zone where the osteoclasts break down spicules and osteoblasts lay down osteoid. 

What is the ossification zone? 

400

This is the embryonic tissue that is needed for ossification. 

What is mesenchyme? 

400

These hairlike canals connect the lacunae together allowing for the passage of nutrients between cells. 

What are canaliculi? 

400

This hormone is released when blood calcium levels are low in order to raise the levels back to normal. 

What is parathyroid hormone? 

500

This is formed due to the breaking of blood vessels when bone is fractured

What is a hematoma? 

500

This is the area where older chondrocytes are enlarged. Some of the lacuna erode which creates interconnecting spaces. 

What is the hypertrophic zone? 

500

This is what carries blood vessels, bone cells, nerves, and more to the developing bone. 

What is the periosteal bud? 
500

These canals connect the central canals to each other and to spongy bone. 

What are perforating canals? (or what are Volkmann's canals?)

500

These are the mineral salts of bone. 

What are hydroxyapatites? (made of calcium phosphate and calcium hydroxide)