Bone Fracture and Repair

Bone forming cells are called...

• osteoblasts
• osteocytes
• osteoclasts
• osteons

What is the name of the incomplete fracture usually seen in children?

• Linear

• Transverse

• Fibial

• Greenstick

The xray shows a fracture that has bones broken into more than two pieces. What type of fracture is this?

• Simple

• Compound

• Impacted

• Comminuted

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

At the end of this stage of bone healing the final structure resembles the original unbroken bone

• Hematoma formation

• Fibrocartilaginous callus formation

• Bony callus formation

• Remodeling

This acts as the body’s natural splint

• Hematoma formation

• Fibrocartilaginous callus formation

• Bony callus formation

• Remodeling

What is a compression fracture?

• A compression fracture is a type of fracture that occurs in the skull.
• A compression fracture is a type of fracture that only affects the arms and legs.
• A compression fracture is a type of bone fracture where the bone collapses under pressure, commonly seen in the vertebrae.
• A compression fracture is a break in the bone caused by a sudden impact or fall.

What is a pathological fracture?

• A fracture caused by a disease that weakens the bone.
• A fracture caused by a sudden impact or injury.
• A fracture that heals without treatment.
• A fracture that occurs during physical activity.

Match the fracture to the correct description.

• Bone fractures under normal weight

• Impacted

• A fracture that results in multiple pieces.

• Compression

• Incomplete break in the bone.

• Comminuted

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

• Green Stick