Bone healing in 2 mins!

What happens during the first phase of bone healing?

• The blood vessels leak blood that clots and forms a hematoma.

• A soft callus of fibrous tissue forms.

• The bone begins to fuse back together.

What role do the white blood cells play during the first phase of bone healing?

• They will create a blood clot.

• They clean up or phagacytose any debris from the fracture.

What lays down collagen?

• Fibroblasts

• Phagocytes

• Red blood cells

What role do endothelial cells play in the first phase of bone healing?

• Lay down and repair blood vessels damaged in fracture.

• lay down collagen

What releases growth factors?

• Platlets and white blood cells

• edothileal cells

What lays down woven tissue to begin forming the soft callus after stimulated by growth hormones?

• osteoblasts

• osteoclasts

What happens to the soft callus during the third phase?

• It gets new blood vessels.

• It becomes mineralized with calcium compounds.

What takes away tissue that is not physically stressed?

• osteoblasts

• osteoclasts

What is the correct order for bone healing?

• soft callus, bony callus, hematoma, remodeling

• remodeling, hematoma, bony callus, soft callus

• hematoma, soft callus, bony callus, remodeling