Bone Remodelling

Which of the following would act as bone "Stress"

• Muscle Contraction

• Impact forces

• Gravitational forces

• Sedentary lifestyle

What would be a tensile force?

• Pushing

• Pulling

• Compression

• Pressure

Spongy bone is replaced by remodelling every

• 1-2 years

• 3-4 years

• 6-8 years

• 10 years

What happens during the remodelling stage known as "Formation"?

• Osteoclasts release acid

• Osteocytes are stimulated

• Osteoclasts die

• Osteoblasts made osteoid

What happens to bone during "Bone Modelling"

• Bone mass gain

• Bone mass loss

• Bone mass loss is equal to its gain

• Bone fracture

What age does bone mass start to decrease (on average)?

• 30

• 35

• 40

• 50