Why human being has bone on their body structure?
Humans and other vertebrates have bones in their body structure for several important reasons:
1. Support: Bones provide structural support to the body, giving it shape and rigidity. They act as a framework that holds the body together, allowing us to stand upright, move, and perform various activities.
2. Protection: Bones protect vital organs and tissues from injury. The skull protects the brain, the ribcage encases the heart and lungs, and the vertebrae shield the spinal cord. Bones absorb and distribute the impact of external forces, reducing the risk of damage to internal organs.
3. Mobility: Bones, together with muscles and joints, enable movement. Muscles attach to bones and pull on them, causing movement at the joints. This allows us to walk, run, jump, bend, and perform a wide range of physical activities.
4. Storage: Bones serve as reservoirs for minerals, primarily calcium and phosphorus. These minerals are essential for various physiological processes, including muscle contraction, nerve transmission, and bone growth. When needed, the body can draw upon these mineral stores from the bones.
5. Blood Cell Production: The bone marrow, located within the cancellous tissue of bones, produces red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Red blood cells carry oxygen, white blood cells fight infection, and platelets play a role in blood clotting.
6. Acid-Base Balance: Bones help regulate the acid-base balance in the body. They act as buffers, releasing or absorbing hydrogen ions (H+) to maintain the pH of body fluids within a narrow range.
7. Endocrine Regulation: Some bone cells, such as osteoblasts and osteocytes, produce hormones that influence various metabolic processes. For example, osteocalcin, produced by osteoblasts, affects glucose metabolism and energy balance.
8. Growth and Development: Bones are dynamic tissues that undergo constant remodeling throughout life. During childhood and adolescence, bones grow and lengthen, contributing to overall physical development and growth.
The presence of bones in the body structure is crucial for human survival, providing support, protection, mobility, mineral storage, blood cell production, acid-base balance, endocrine regulation, and growth.