Skeletal anatomy refers to the study of the structure and function of the human skeleton, which is made up of 206 bones in adults. These bones provide support, protect vital organs, and enable movement by serving as attachment points for muscles. The skeleton is divided into two main parts: the axial skeleton, which includes the skull, vertebral column, and rib cage, and the appendicular skeleton, which consists of the limbs and their attachments. Bones are categorized into different types, such as long bones, short bones, flat bones, and irregular bones, each serving specific functions. The skeletal system also includes cartilage, which cushions joints, and ligaments, which connect bones to one another. Overall, skeletal anatomy is essential for understanding how the body maintains its shape and facilitates movement.