Which of the following statements about body cavities is false?

The statement that the thoracic cavity contains two subdivisions is indeed false because the thoracic cavity is typically divided into three distinct parts: the right and left pleural cavities, which house the lungs, and the mediastinum, which contains the heart, trachea, and other structures. This understanding is important as it highlights the complexity of the thoracic region and the specific roles each subdivision has in housing vital organs.

In contrast, the other statements provide accurate information about body cavities. The dorsal and ventral cavities are the two primary divisions of the body; the dorsal cavity contains the central nervous system structures, while the ventral cavity houses the organs within the thoracic and abdominopelvic regions. Additionally, the statement about the ventral cavity being subdivided into the thoracic and abdominopelvic cavities is also true, as this division is fundamental in understanding human anatomy and the relationships between various organ systems. Recognizing these distinctions aids in comprehending the organization of the body's structures and their functions.