HAP# 13 -Fracture Repair

Match the fracture to the correct description.

• A fracture that results in multiple pieces.

• Compression

• Incomplete break in the bone.

• Green Stick

• Bone fractures under normal weight

• Impacted

• A fracture where one bone fragment is driven into another.

• Comminuted

Match the stages in bone repair

• Blood clot that forms at the site of injury

• Bony Callus

• Spongy bone replaces fibrocartilage

• Hematoma

• Bone responds to mechanical stress

• Bone Remodeling

• Temporary tissue that forms during healing

• Fibrocartilage Callus

Reorder the following stages in bone repair

• Bone Remodeling

• Hematoma

• Bony Callus

• Fibrocartilage Callus

Bone forming cells are called...

• osteoblasts
• osteocytes
• osteoclasts
• osteons

A blood clot that forms within 6-8 hours after a bone breaks , due to broken blood vessels.

• fracture hematoma

• cartilage hematoma

• bony callous

• fracture

What is happening in this stage of bone healing?

• Bone is fractured

• Hard callus forms, osteoblast cells create new bone

• Remodeling, osteoclasts remove extra bone until its completely healed

• Soft callus forms, chondroblast and fibroblasts produce the fibrocartilaginous calus

Tags

NGSS.HS-LS1-4

What cells are responsible for constructing a hard callus?

What cells are responsible for cleaning up pieces of bone following a bone fracture?

During fracture repair, the fibrocartilage callus is replaced with

• compact bone

• cartilage and collagen

• spongy bone

• compact bone and collagen

A blood-filled swelling is called a

• sore

• callus

• hematoma