In the dorsal cavity, which cavity houses the brain?

The cranial cavity is the space within the skull that contains and protects the brain. It is a part of the dorsal cavity, which is one of the body’s major cavities along with the ventral cavity. The cranial cavity is specifically designed to provide a secure environment for the brain, protecting it from external trauma while allowing for the necessary range of movement and functioning.

In contrast, the spinal cavity, also known as the vertebral cavity, is the passage that houses the spinal cord, which is a crucial component of the central nervous system but distinct from the brain itself. The thoracic cavity, located in the ventral region of the body, contains structures such as the heart and lungs, rather than the brain.

Thus, the cranial cavity is the correct answer as it is the specific anatomical location responsible for housing the brain within the dorsal body cavity.