The thoracic cavity is positioned superiorly to the abdominopelvic cavity, serving as an upper compartment within the body’s central axis. It is separated from the abdominopelvic cavity by the diaphragm, a dome-shaped muscle that plays a crucial role in respiration.
The thoracic cavity houses vital organs such as the heart and lungs, protected by the rib cage. In contrast, the abdominopelvic cavity, which is further divided into the abdominal and pelvic cavities, contains organs involved in digestion, reproduction, and excretion.
This anatomical relationship is essential for various physiological functions and allows for coordinated activities between the systems located in both cavities. Understanding these two cavities is fundamental for grasping the overall organization of the human body.