structure of muscuskeletal

Which bone cells produce osteocalcin when stimulated by 1,25-dihydroxyvitamin D and

synthesize osteoid?

• Osteoclasts

• Osteocytes

• Fibrocytes

• Osteoblasts

What happens to the original bone during the second phase of bone remodeling?

• The original bone is replaced

• It hardens.

• The original bone is resorbed.

• It is synthesized

Which cells function to maintain bone matrix?

• Osteoclasts

• Osteocytes

• Osteoblasts

• Osteophytes

Which bone cells are large and multinucleated and contain lysosomes filled with

hydrolytic enzymes?

• Osteoblasts

• Osteoclasts

• Osteocytes

• Fibrocytes

Which bone cell secretes hydrochloric acid to help dissolve bone minerals and

collagenase, thus aiding in the digestion of collagen?

• Osteocytes

• Osteoblasts

• Osteoclasts

• Osteophytes

Which glucoprotein is believed to inhibit calcium phosphate precipitation and play a part

in bone resorption by recruiting osteoclasts?

• Osteocalcin

• Osteonectin

• Laminin

• Osteopontin

Which glucoprotein is thought to transport essential elements such as hormones, ions, and

other metabolites to and from the bone cells?

• Osteocalcin

• Osteonectin

• Laminin

• Bone albumin

What is the basic structural unit in compact bone?

• Small channels called canaliculi

• Osteocytes within the lacunae

• Tiny spaces within the lacunae

• Haversian system

Which part of an injured joint becomes insensitive to pain and regenerates slowly and

minimally

• Synovium

• Articular cartilage

• Bursa

• Tendon

The stage of healing in the bone that involves procallus formation entails which process?

• Formation of a hematoma that allows the development of a fibrin network

• Production of granulation tissue by fibroblasts, capillary buds, and osteoblasts

• Development of a primitive bone matrix termed woven bone

• Remodeling of the periosteal and endosteal bone surfaces