Answer to Question #136640 in Biology for Galata

Question

5, Why does a damaged cartilage heal very slowly?
6, What is Osteon or Haversian system? Describe the main function and it's different structural parts.

Answer 1

5) Cartilage heals slowly because it has no blood supply.

6) Osteon, the chief structural unit of compact (cortical) bone, consisting of concentric bone layers called lamellae, which surround a long hollow passageway, the Haversian canal (named for Clopton Havers, a 17th-century English physician). The main function of this system is to facilitate the supply of oxygen, as well as nutrients to the bone cells. It is the central canal that is responsible for the nerve supply, as well as the vascular supply to the bone.