How does bone repair after injury?

yes up to certain age It's easy to think of our bones as solid, lifeless matter where all of our living tissue just sits. But your skeleton is as much a living part of your being as your softer tissues and organs. The body stores minerals in the hard, compact bone. It produces red blood cells in the inner red marrow and stores fat in the yellow marrow. It's important to remember that your bones are constantly changing. Cells called osteoclasts constantly break down old bone so that osteoblasts can replace it with new bone tissue -- a process called bone remodeling. Another type of cell called a chondroblast forms new cartilage. These are three of the primary cells responsible for bone growth -- and not just the bone growth you experience early in life. This constant bone remodeling gradually replaces old bone tissue with new tissue during the course of months. = Bone growth = The bones of embryos are made largely of cartilage. They are soft. The process of ossification uses calcium to create bone as the child grows and matures. Bones gradually become hard and strong. With age bones lose their density and strength. When severe this is called osteoporosis. Eating foods containing calcium and exercising regularly helps bones to develop and stay stronger for longer.