Which section of the skeleton includes the vertebral column, skull, and ribs?

The axial skeleton is the central core of the skeletal system and includes the vertebral column, skull, and ribs. This structure serves as the primary support framework for the body. It protects vital organs such as the brain and spinal cord and plays a crucial role in maintaining posture and balance.

The vertebral column, or spine, provides support for the body and houses the spinal cord, while the skull encases and protects the brain. The ribs form the rib cage, protecting the heart and lungs.

In contrast, the appendicular skeleton comprises the limbs and associated girdles (shoulder and pelvic), while the endoskeleton refers to the internal skeletal structures of vertebrates in general, and the pectoral girdle pertains specifically to the bones that connect the arms to the axial skeleton. This clarification emphasizes that the axial skeleton is distinct and essential in forming the central framework of the body.