Question

What is the basic structural unit of compact bone tissue?

Answer 1

The basic structural unit of compact bone tissue is the osteon. It consists of concentric rings of calcified matrix called lamellae and contains the central canal that houses blood vessels, nerves, and lymphatic vessels.

Step-by-step explanation:

The basic structural unit of compact bone tissue is called an osteon or Haversian system. Each osteon is composed of concentric rings of calcified matrix called lamellae. The central canal, or Haversian canal, runs down the center of each osteon and contains blood vessels, nerves, and lymphatic vessels. These vessels and nerves branch off through a perforating canal, also known as Volkmann's canals, to extend to the periosteum and endosteum.

Answer 2

Step-by-step explanation:

The basic structural unit of compact bone tissue is called an osteon, also known as a Haversian system. The osteon consists of concentric layers of bone tissue surrounding a central canal called the Haversian canal. The Haversian canal contains blood vessels, nerves, and connective tissue. Surrounding the Haversian canal are circular layers of mineralized matrix known as lamellae. Between the lamellae are small spaces called lacunae, which house mature bone cells called osteocytes. Canaliculi, tiny channels, connect the lacunae and allow for the exchange of nutrients and waste products between osteocytes and blood vessels. This organized structure of osteons provides strength and support to compact bone tissue.