THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The dorsal body cavity includes the cranial cavity, enclosed by the skull and contains the brain, and the spinal cavity, enclosed by the spine, and contains the spinal cord. The ventral body cavity includes the thoracic cavity, enclosed by the ribcage and contains the lungs and heart; and the abdominopelvic cavity.

Detailed explanation-2: -The dorsal cavity contains the spinal cord, central nervous system, and spinal column, whereas the ventral cavity consists of the thoracic, abdominal, and pelvic cavities.

Detailed explanation-3: -In the posterior (dorsal) cavity, the cranial cavity houses the brain, and the spinal cavity (or vertebral cavity) encloses the spinal cord. Just as the brain and spinal cord make up a continuous, uninterrupted structure, the cranial and spinal cavities that house them are also continuous.

Detailed explanation-4: -The vertebral canal is an anatomically sterile space considered a subdivision of the dorsal body cavity, which contains the cranial cavity and the vertebral cavity/canal.