The lung root also extends inferiorly as a narrow fold known as the pulmonary ligament. the bronchial arteries (one on one side and two on the other)Īll of these structures are enclosed by a reflection of the pleura.the eparterial and hyparterial bronchus on the other side.Structures that form the root of the lung enter and exit at the hilum, allowing the root to be connected to the heart and trachea. The root of the lung is located at the hilum of each lung, just above the middle of the mediastinal surface and behind the cardiac impression.
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