
Human skeleton
The human skeleton is the internal framework of the body, composed of 206 bones in adults. It provides support, shape, and protection for organs and tissues. Bones enable movement by serving as attachment points for muscles, and they produce blood cells in bone marrow. The skeleton also stores minerals like calcium and phosphorus. It includes the skull, spine, ribs, arms, and legs, connected by joints that allow various movements. Overall, the skeleton is essential for standing upright, mobility, and protecting vital internal organs such as the brain and heart.