Skeletal System Quiz

What is the main protein found in bones?

• Elastin

• Collagen

• Keratin

• Fibrin

What type of skeleton do earthworms have?

• Exoskeleton

• Hydrostatic skeleton

• Axial skeleton

• Endoskeleton

Which type of bone is responsible for handling pressure?

• Sesamoid bones

• Short bones

• Long bones

• Flat bones

What is the function of red marrow in bones?

• Muscle contraction

• Mineral storage

• Blood cell production

• Energy storage

Which cells are responsible for making bone?

• Osteoblasts

• Chondroblasts

• Osteocytes

• Osteoclasts

What is the function of chondrocytes in cartilage?

• Make up the cartilage

• Make new bone

• Maintain bone structure

• Break down bone structure

What is the name of the collection of blood that forms at the site of a bone break?

• Osteocyte

• Lysosome

• Callus

• Hematoma

What genetic disorder affects collagen production and causes brittle bones?

• Rickets

• Marfan syndrome

• Osteogenesis imperfecta

• Osteoporosis

What is the estimated percentage of a skeleton that is remodeled every year?

• 15-20%

• 1-5%

• 5-10%

• 10-15%

What is the outer layer of bone tissue called?

• Compact bone tissue

• Red marrow

• Yellow marrow

• Spongy bone tissue