Osteoblasts and Osteoclasts Quiz

What are osteoblasts and osteoclasts responsible for?

• Neither forming new bone tissue nor breaking down old bone tissue

• Both forming new bone tissue and breaking down old bone tissue

• Breaking down old bone tissue

• Forming new bone tissue

What is the main function of osteoblasts?

• Reshaping bones

• Growing new bones

• Healing damaged bones

• All of the above

What triggers osteoblasts to create and release bone matrix?

• Chemical reactions

• Neither chemical reactions nor hormones

• Hormones

• Both chemical reactions and hormones

What happens to osteoblasts after they have laid down new bone tissue?

• All of the above

• They die

• They transform into osteocytes

• They become part of the bone

What do osteocytes do?

• Monitor changes in pressure and stress in bones

• Respond to injuries

• Trigger repair of damaged bone tissue

• All of the above

What is the main function of osteoclasts?

• Dissolving and breaking down old bone cells

• Creating new bone tissue

• Both dissolving and creating bone tissue

• Neither dissolving nor creating bone tissue

How do osteoclasts dissolve old bone tissue?

• By releasing enzymes

• By physical force

• By using acid

• By triggering chemical reactions

What happens to the dissolved bone tissue by osteoclasts?

• It is reabsorbed into the body

• It is used to create new bone tissue

• It is excreted as waste

• It is transformed into osteoblasts

What do osteoblasts and osteoclasts look like?

• Osteoblasts are cube-shaped, osteoclasts are dome-shaped

• Osteoblasts are dome-shaped, osteoclasts are cube-shaped

• Both osteoblasts and osteoclasts are dome-shaped

• Both osteoblasts and osteoclasts are cube-shaped

Which of the following conditions can affect osteoblasts and osteoclasts?

• Hyperparathyroidism

• Osteopenia

• Osteoporosis

• All of the above