Final answer:
The heart, lungs, and esophagus are situated in the thoracic cavity.
Step-by-step explanation:
The structures situated in the thoracic cavity are the heart, lungs, and esophagus. The thoracic cavity is the more superior subdivision of the anterior (ventral) cavity and is enclosed by the rib cage. It contains the heart, which is located in the mediastinum, as well as the lungs and the esophagus.