Bone formation and development

Reorder the following steps in bone formation and growth.

• Chondrocytes produce the bone model

• Chondrocytes begin to die and a signal is sent out

• Chondrocytes secrete the bone matrix

• A bone collar is produced along the diaphysis

• Chondrocytes increase in size in the center of the bone

Reorder the following steps of bone growth and development

• Osteoblasts lay down the bone matrix

• Osteoblasts and osteoclasts enter the primary ossification center

• Secondary ossification center is created

• Osteoblasts enter the secondary ossification center.

• Osteoclasts carve out the medullary canal

Which comes first in the developing fetus

• Chondrocytes produce the bone model

• Osteoblasts create a bone matrix

• Chondrocytes convert cartilage to bone

• Osteoclasts form a cartilage skeleton

The last cartilage to be converted to bone makes up the

• epiphyseal plate or line

• diapgysis

• spongy bone

• medullary canal

Osteoblasts are cells that

• build bone

• destroy bone

• build cartilage

• destroy cartilage

Osteoclasts are cells that

• build bone

• destroy bone

• build cartilage

• destroy cartilage

Ossification is the process of

• making bone

• making rocks

• repairing damaged bone

• replacing cartilage

What is found in the medullary canal of long bones?

• red marrow

• yellow marrow

• cartilage

• empty space

Label the parts of the picture. Not all labels will be used.

e

f

g

b

endosteum

compact bone

medullary canal

yellow marrow

periosteum

spongy bone

red marrow

Label the features on the outside of the bone. Not all labels will be used.

b

c

d

e

diaphysis

epiphysis

articular cartilage

periosteum

endosteum