What is the function of calcium in skeletal system?
Calcium is a vital mineral that plays numerous essential roles in the skeletal system. It is the primary component that provides bones and teeth with their strength, rigidity, and density. Here are some key functions of calcium in the skeletal system:
1. Bone Formation and Growth: Calcium is crucial for the formation of new bone tissue and the growth of bones during childhood and adolescence. It combines with phosphorus to form hydroxyapatite crystals, which are the building blocks of bones.
2. Bone Remodelling: Throughout life, old bone tissue is constantly broken down and replaced with new bone tissue in a process called bone remodelling. Calcium ions are essential for the formation of new bone matrix and the mineralization of newly formed bone tissue.
3. Bone Strength and Density: Calcium is responsible for the rigidity and strength of bones, helping them to resist bending and breaking. Adequate calcium intake helps maintain bone density and reduces the risk of developing osteoporosis, a condition characterized by weak and brittle bones.
4. Dental Health: Calcium is vital for the development and maintenance of healthy teeth. It is a major component of tooth enamel, which protects the teeth from decay and damage.
5. Bone Mineralization: Calcium is necessary for the mineralization of bones, which occurs when newly formed bone tissue is hardened and strengthened by the deposition of calcium and phosphorus. This process ensures the proper structure and stability of bones.
6. Joint Function: Calcium helps to maintain healthy joints and reduce the risk of arthritis. It is involved in the production of synovial fluid, which lubricates joints and reduces friction between bones.
7. Muscle Function: Calcium plays a role in muscle function, including the contraction and relaxation of skeletal muscles. It is necessary for the transmission of nerve impulses to muscles, allowing them to move properly.
Overall, calcium is essential for the proper growth, development, and maintenance of the skeletal system. Adequate calcium intake through diet or supplements is crucial to ensure strong bones, healthy teeth, and overall skeletal health.