Final answer:
The Ancillary Structures of the human skeleton are D) Tendons, cartilage, and ligaments. They are not part of the axial or appendicular skeletons but are vital for connecting bones or muscles and providing joint flexibility.
Step-by-step explanation:
The Ancillary Structures of the human skeleton are associated with the main skeletal divisions, which are the axial skeleton and the appendicular skeleton.
The axial skeleton consists of the bones that form the central axis of the body, including the skull, vertebral column, and thoracic cage. The appendicular skeleton is comprised of the bones of the pectoral and pelvic girdles as well as the limb bones, which include the bones of the hands and feet.
Given the components of each skeleton division and the structures that assist in their functions, the ancillary structures referred to in the question that support the skeleton are likely to be cartilage, ligaments, and tendons.
These are not bones themselves but are vital for connecting bones to each other (ligaments) or muscles to bones (tendons), and providing cushioning and flexibility at joints (cartilage).
Based on this information, the correct answer to the question "The Ancillary Structures of the human skeleton are:" would be D) Tendons, cartilage and ligaments.
correct option D)
Tendons, cartilage and ligaments