NEET PG DENTAL EXAM

Detailed explanation-1: -The thoracic segment lies between the vertebral column and the trachea in the superior mediastinum, extending from the suprasternal notch to the diaphragm. As the esophagus is followed distally, it passes behind the aortic arch at the level of the T4 through T5 intervertebral discs and enters the posterior mediastinum.

Detailed explanation-2: -The esophagus lies posterior to the trachea and the heart and passes through the mediastinum and the hiatus, an opening in the diaphragm, in its descent from the thoracic to the abdominal cavity.

Detailed explanation-3: -[2] The thoracic cavity contains organs and tissues that function in the respiratory (lungs, bronchi, trachea, pleura), cardiovascular (heart, pericardium, great vessels, lymphatics), nervous (vagus nerve, sympathetic chain, phrenic nerve, recurrent laryngeal nerve), immune (thymus) and digestive (esophagus) systems.

Detailed explanation-4: -The thoracic cavity also contains the esophagus, the channel through which food is passed from the throat to the stomach.