Understanding Bone Structure and Fractures

Which condition results in abnormally short stature due to cartilage not converting to bone?

• Rickets

• Osteopenia

• Achondroplasia

• Osteomalacia

What is a fracture called where the bone breaks but does not pierce the skin?

• Compound fracture

• Closed fracture

• Spiral fracture

• Comminuted fracture

What type of fracture occurs when the bone is twisted apart?

• Spiral fracture

• Oblique fracture

• Greenstick fracture

• Transverse fracture

Which fracture involves a break at an angle that is not 90 degrees?

• Oblique fracture

• Transverse fracture

• Comminuted fracture

• Greenstick fracture

What type of fracture involves multiple bone fragments?

• Greenstick fracture

• Comminuted fracture

• Transverse fracture

• Compound fracture

Which fracture is most common in children and involves bending without complete breakage?

• Greenstick fracture

• Comminuted fracture

• Spiral fracture

• Impacted fracture

What is the final stage of bone repair?

• Formation of hematoma

• Cartilage replaced by trabecular bone

• Remodeling

• Formation of calli

What forms immediately after a fracture to stop blood loss?

• Bone callus

• Fracture hematoma

• Spongy bone

• Compact bone

What is the structural unit of compact bone?

• Trabeculae

• Osteon

• Epiphyseal plate

• Haversian canal

Where does hematopoiesis occur?

• Yellow marrow

• Red marrow

• Periosteum

• Endosteum