Tulang, or bones, are the rigid structures that make up the skeleton of vertebrates, including humans. They provide support, protect vital organs, and enable movement by serving as attachment points for muscles. Tulang is primarily composed of a matrix of collagen fibers and minerals, mainly calcium phosphate, which gives them strength and density. In addition to their structural role, tulang also plays a crucial part in producing blood cells within the bone marrow. This process, known as hematopoiesis, is essential for maintaining healthy blood circulation. Overall, tulang is vital for both physical support and overall health in living organisms.