Final answer:
The incorrect statement is that the jawbone supports the eyes, which is not true as it is the orbital cavity's role in the skull.
Step-by-step explanation:
The function of the skeletal system includes several key roles such as providing support and shape to the body, protecting internal organs, facilitating movement, producing blood cells, maintaining homeostasis, and synthesizing endocrine hormones. The components of the skeletal system are bones, cartilage, tendons, and ligaments. However, the statement that the jawbone supports the eyes is NOT true. The orbital cavity, which is a part of the skull, is what actually supports the eyes, not the jawbone.