What are the two main divisions of the skeleton?

The two main divisions of the skeleton are the axial and appendicular skeleton. The axial skeleton consists of the bones that form the central axis of the body, including the skull, vertebral column, and rib cage. This division plays a crucial role in protecting vital organs, providing structural support, and facilitating movement by serving as an attachment point for muscles.

On the other hand, the appendicular skeleton comprises the bones of the limbs and their girdles (shoulder and pelvic girdles). This division is primarily involved in facilitating movement and mobility, as well as supporting the limbs during various activities.

Understanding these two divisions is essential in the study of functional anatomy, as they not only describe the structure of the skeletal system but also provide insights into how these components work together to enable movement and protect the body's core functions. The other choices, while mentioning specific groups of bones or characteristics, do not capture the broad and fundamental divisions that are recognized in human anatomy.