Which sequence accurately outlines the components of the digestive system?

The sequence that outlines the components of the digestive system effectively begins with the esophagus, which is responsible for transporting food from the mouth to the stomach. The diaphragm is also part of this process, providing structural support and facilitating the movement of the thoracic cavity, which can aid in the swallowing action. The cardiac sphincter, also known as the lower esophageal sphincter, is critical as it prevents the backflow of stomach contents into the esophagus.

While the sequence may not list all components in a strictly linear fashion, it acknowledges the interconnected roles of these structures in the digestive process. It allows for an understanding of how each part contributes to the function and continuity of the digestive system. The inclusion of "etc." implies there are additional components following the cardiac sphincter, which is indeed accurate given that the digestive system includes multiple organs beyond just the esophagus and stomach, such as the intestines, liver, and pancreas among others.

In contrast, other options limit the sequence or introduce incorrect elements that do not fit the linear digestive pathway. For instance, the inclusion of the diaphragm in some sequences may not emphasize its supportive role in digestion as effectively as a more holistic approach that allows for a broader understanding of the entire system.