What is one primary function of the lateral system actions?

The primary function of the lateral system actions is to balance forces on the pelvis. This system is essential for maintaining stability and proper alignment of the pelvis during various movements. By effectively managing the forces applied to the pelvis, the lateral system helps prevent compensatory movements that could lead to injury or imbalances in the body's structure. It plays a crucial role in promoting functional movement patterns and ensuring that the pelvis remains stable while facilitating the body's overall biomechanics.

In contrast, other options such as increasing thoracic volume, enhancing spinal rotation, and strengthening the shoulder girdle are specific to different muscle systems or actions that do not directly pertain to the lateral system's primary role. While those functions are important in their contexts, they do not encapsulate the lateral system's main contribution to body balance and stability.