Microscopic Structure of Bone

What are the two types of bone?

• Compact bone and spongy bone

• Long bone and short bone

• Flat bone and irregular bone

• Cortical bone and cancellous bone

Where is compact bone found in a long bone?

• Diaphysis

• Epiphysis

• Periosteum

• Medullary cavity

What is the basic subunit of compact bone called?

• Osteon

• Trabeculae

• Lamellae

• Osteocyte

What is the structure that runs the longitudinal axis of the bone?

• Osteon

• Trabeculae

• Lamellae

• Osteocyte

What is the name of the circular structures in compact bone?

• Osteon

• Trabeculae

• Lamellae

• Osteocyte

Where do osteocytes live in compact bone?

• Lacuna

• Canaliculi

• Haversian canal

• Periosteum

What are the passageways that interconnect osteocytes called?

• Canaliculi

• Lacuna

• Haversian canal

• Periosteum

What is the center of the osteon called?

• Central canal

• Lacuna

• Haversian canal

• Periosteum

What fills the gaps between osteons in compact bone?

• Interstitial lamellae

• Circumferential lamellae

• Trabeculae

• Canaliculi

How is the blood supply interconnected in compact bone?

• Perforating canal

• Haversian canal

• Lacuna

• Canaliculi