What is contained within the dorsal cavity?

The dorsal cavity is primarily composed of two main areas: the spinal cavity and the cranial cavity. The cranial cavity encases the brain, providing protection and support, while the spinal cavity houses the spinal cord. Together, these cavities are responsible for safeguarding the central nervous system, which is a critical component of the body's functioning.

The thoracic cavity, abdominal cavity, and pelvic cavity are part of the ventral body cavity, not the dorsal cavity. The thoracic cavity is situated above the diaphragm and contains the lungs and heart, whereas the abdominal cavity lies below the diaphragm and contains organs such as the stomach and intestines. The pelvic cavity is located below the abdominal cavity and includes structures related to the reproductive and excretory systems. Therefore, the inclusion of both the spinal and cranial cavities is what accurately defines the contents of the dorsal cavity.