Bone Cells Quiz

What type of cells are responsible for bone formation?

• Chondrocytes

• Osteoblasts

• Osteocytes

• Osteoclasts

Which cells are involved in bone resorption?

• Osteoclasts

• Osteocytes

• Osteoblasts

• Chondrocytes

What do osteoblasts secrete that constitutes 90% of the protein in bone?

• Keratin

• Type II collagen

• Type I collagen

• Elastin

Where are osteocytes found?

• In the bone marrow

• In lacunae

• On the bone surface

• In the periosteum

What is the function of osteocytes?

• Maintaining the calcified matrix

• Secreting collagen

• Bone formation

• Bone resorption

What is the appearance of osteoclasts under a light microscope?

• Columnar

• Cuboidal

• Large and multinucleated

• Small and round

What do osteoclasts secrete to degrade the inorganic matrix?

• Alkaline phosphatase

• H+ ions

• Hydrochloric acid

• Calcium

What is the periosteum?

• A layer of cartilage

• A type of bone cell

• A connective tissue covering the bone

• A type of bone matrix

What fibers penetrate the bone matrix to bind the periosteum to bone?

• Collagen fibers

• Reticular fibers

• Perforating (Sharpey's) fibers

• Elastic fibers

What is the endosteum?

• A layer of cartilage

• A type of bone cell

• A layer of osteogenic cells lining the bone marrow cavity

• A type of bone matrix