Bone Tissue: Structure and Function
Bones are one of the most important elements of the musculoskeletal system of our body. They give shape to the body, protect internal organs and allow us to move. Bones are also where blood is produced and minerals are stored. In this article we will look at the structure of bones and their different tissue types.
Bone tissue is composed of three types of cells: osteoblasts, osteocytes and osteoclasts. Osteoblasts are cells that are responsible for the formation of new bone tissue. Osteocytes are mature cells that are found inside bones. They control bone metabolism and maintain its vitality. Osteoclasts are cells that remove old bone tissue.
Bones have a complex structure consisting of different types of bone tissue. Spongy bone tissue is found in the center of short, flat bones. This tissue has many small cavities filled with red bone marrow. Red bone marrow is the site of blood formation and produces blood cells such as red blood cells and white blood cells.
Compact bone tissue is found on the periphery of short and flat bones, as well as along the edges of the central part of long bones. This tissue has a smooth surface and contains Haversian canals, which allow blood vessels to deliver nutrients and oxygen to the bone tissue. Inside the bone marrow canal, which is located in the central part of the long bones, there is yellow bone marrow - tissue containing fatty inclusions.
Bones have several types of joints. The most common are articulated joints, which allow movement in one or more planes. For example, the knee joint is a hinge joint that allows us to bend and extend the leg. There are also planar joints that allow bones to slide over each other, such as in the wrist and ankle joints.
Bones are very strong and resistant to stress, but they are also flexible enough to allow us to make a variety of movements. However, bones can be susceptible to damage and fractures. Fractures can be complete or incomplete. In a complete fracture, the bone breaks nearby tissue and opens a wound in the skin, which is called an open fracture. To avoid such troubles, you must follow safety rules. For example, when playing sports or exercising, you need to warm up properly and not make sudden movements. When jumping, you should land on your toes, bending your legs. It is also important to correctly distribute the load on the bones and avoid overload.
Bone tissue plays an important role in our body. They provide support and movement of the body, protect internal organs, participate in the formation of blood and store minerals. Understanding the structure and functions of bone tissue helps us better understand how our body works and how to properly care for our health.