What are muscles primarily composed of?

Muscles are primarily composed of soft tissues, which are groups of cells that work together to perform specific functions. In the case of muscles, these soft tissues consist of muscle fibers that enable movement and provide strength. Muscle tissue can be categorized into three types: skeletal, smooth, and cardiac, each serving unique roles in the body.

The structure and composition of muscles are crucial for their function. Skeletal muscles, for instance, are responsible for voluntary movements and are attached to bones, while smooth muscles control involuntary functions within organs, and cardiac muscle makes up the heart tissue.

In contrast, bone tissues provide structural support, ligaments connect bones to other bones and stabilize joints, and cartilage serves as a cushion between joints and forms parts of structures like the nose and ears. None of these options represent the composition of muscles accurately, making soft tissues the appropriate choice for understanding what muscles are primarily made of.