Microscopic Structure of Bone Tissue Quiz

The osteon, or Haversian system, is the fundamental structural unit of compact bone, consisting of concentric rings of bone matrix around a central canal.

Collagen fibers, a protein, are the primary component of the bone extracellular matrix, providing flexibility and tensile strength to bone tissue.

Osteoclasts are specialized cells that break down bone tissue during the process of resorption.

Spongy bone, also known as trabecular or cancellous bone, is responsible for blood cell formation in its lattice-like structure filled with red or yellow bone marrow.

Osteoblasts are bone-forming cells that synthesize and secrete bone matrix, playing a crucial role in bone development and repair.

The periosteum is a connective tissue membrane covering bones, providing protection, nourishment, and a site for tendon and ligament attachment.

Compact bone, with its dense and solid structure, is primarily composed of parallel lamellae arranged around blood vessels, providing strength and support.

Parathyroid hormone (PTH) regulates calcium levels in the blood by stimulating osteoclasts to resorb bone, releasing calcium into the bloodstream.

Canaliculi are microscopic channels that facilitate communication between osteocytes (bone cells), allowing nutrient exchange and maintaining cell viability.