Question

Write short note on Haversian system.​

Answer 1

Answer:

Haversian system:

• The structural unit of bone is known asHaversian system or osteon.

• Presence of Haversian system is thecharacteristic feature of mammalian bone.

• Haversian system shows Haversian canal in the centre.

• Haversian canal consists of blood vessels both artery and vein, lymph vessel and a nerve.

• Lacunae containing osteoblasts or osteocytes seen arranged concentrically around Haversian canal.

Answer 2

Explanation:

Haversian canals contain arteries and veins, osteoblasts in areolar tissue, nerves and lymph. It is also called osteon. A Haversian canal, its lamellae and osteocytes form a Haversian system. Haversian canals are found in bone matrix of long bone, like humerus of mammals.