What are fibrous bands that connect adjacent bones and are crucial for joint integrity?

Ligaments are fibrous connective tissues that connect adjacent bones at joints, playing a crucial role in maintaining joint integrity and stability. They are composed of densely packed collagen fibers, which provide strength and flexibility, allowing joints to withstand various forces while limiting excessive movement that could lead to dislocations or injuries. Ligaments serve as essential stabilizers, helping to ensure that bones remain properly aligned during movement, thereby facilitating joint function and overall mobility.

The other options, while related to the musculoskeletal system, perform different functions. Tendons attach muscles to bones, enabling movement, while cartilage provides cushioning and support between bones in a joint but does not connect them. Muscles are responsible for movement by contracting but do not have a direct role in connecting bones.