Which body cavity contains the spinal cord?

The spinal cavity, also known as the spinal canal, houses the spinal cord, which is a critical component of the central nervous system. This cavity is an enclosed space within the vertebral column, allowing protection for the delicate nerve tissue of the spinal cord, which extends from the brainstem down to the lower back. The spinal cord is responsible for transmitting signals between the brain and the rest of the body, playing an essential role in reflex actions and coordination of movement.

The cranial cavity contains the brain, while the thoracic cavity houses the organs of the chest, including the heart and lungs. The abdominal cavity contains various digestive organs, such as the stomach and intestines. Each of these cavities has distinct anatomical functions and contents, but it is specifically the spinal cavity that is the designated space for the spinal cord.