What does the musculoskeletal system consist of?

The musculoskeletal system is primarily composed of bones, muscles, and cartilage. This system serves several critical functions, including providing structural support to the body, facilitating movement through the coordinated action of muscles and bones, and protecting vital organs. Bones form the framework of the body, while muscles are responsible for movement and stability, enabling locomotion and various bodily activities. Cartilage, a flexible connective tissue, provides cushioning at joints, supports structures like the nose and ears, and plays a crucial role in the development of bone structures.

Understanding these components helps in recognizing how they work together to maintain overall health and function. The other options do not pertain to the musculoskeletal system; instead, they relate to other crucial systems in the body, such as the cardiovascular system, renal system, and endocrine system.