Final answer:
The body is made of five main cavities: (a) Cranial, Thoracic, Abdominal, Pelvic, and Spinal, with the dorsal cavity containing the cranial and spinal cavities, and the ventral cavity containing the thoracic and abdominopelvic cavities.
Step-by-step explanation:
Understanding Body Cavities
The correct answer to the question about body cavities that the human body is made of is: a) Cranial, Thoracic, Abdominal, Pelvic, and Spinal cavities. These cavities are the principal spaces within the body that house and protect vital organs. Specifically, the thoracic and abdominopelvic cavities are subdivisions of the ventral cavity, while the dorsal cavity includes the cranial and spinal cavities.
The dorsal cavity is located at the posterior (back) part of the body, including the head and the back of the trunk. It contains the cranial cavity, which encloses the brain, and the spinal cavity, which encloses the spinal cord. The ventral cavity is situated at the anterior (front) of the trunk, divided into the thoracic cavity (which includes the pleural cavities around the lungs and pericardial cavity around the heart) and the abdominopelvic cavity (which can be further separated into the abdominal and pelvic cavities).