Bone

Bone is one of the most important organs of the human body. It consists of bone tissue and forms the human skeleton. Bone tissue consists of bone cellular elements enclosed in a ground substance that contains collagen fibers impregnated with crystals of calcium hydroxyalate and amorphous calcium phosphate.

The human skeleton is mainly built of lamellar bones, which consist of bony plates containing bone cells, osteocytes, and ground substance. Depending on the position of the bone plates, compact and spongy ground substances are distinguished. The compact ground substance forms the outer layer of bone, which consists of osteons, consisting of cylindrical plates inserted into each other (Haversian systems). The spongy ground substance is located under the compact substance and consists of thin plates called trabeculae.

Bone tissue plays an important role in the human body. It provides skeletal strength, protects internal organs, participates in metabolism and maintains homeostasis. Bone is also an important part of the immune system because it contains many cells that help protect the body from infections and other pathogens.

Thus, bone is an important organ that plays a key role in human health.

Bone (from Latin os, Greek oón) is an organ created by a type of connective tissue: bone tissue, and is also part of the musculoskeletal system. It is a component of the skeleton of an animal or human, but the term "bone" does not only refer to it, but is also used to describe a structure or shape that resembles a skeleton. Bone is an integral part of the skeletal apparatus. The bulk of the skeletal system is spongy and compact bone. The largest amount of bone mass (about 90%) is trabecular bone (spongiosum or cancellous bone).

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