Embryological Development of Thoracic Structures — Flashcards

Flashcard 1: Bronchial artery supplies lungs up to _____ bronchiole.

Answer: respiratory

Flashcard 2: Thoracic duct ascends through the _____ mediastinum between the aorta and the azygous vein.

Answer: posterior

Flashcard 3: Both the lungs have _____ bronchopulmonary segments each.

Answer: 10

Flashcard 4: The costal cartilages of _____ ribs form the subcostal angle.

Answer: 7th, 8th, 9th, 10th ribs

Flashcard 5: Structures passing through the Aortic hiatus include (4)?_____

Answer: Aorta, Azygous vein, Hemiazygous vein and Thoracic duct

Flashcard 6: The phrenic nerve supplies _____ fibres to the muscular diaphragm

Answer: motor

Flashcard 7: Azygous lobe is a portion of the _____ lobe of the lung

Answer: superior

Flashcard 8: _____ passes anterior to the scalene tubercle of the 1st rib.

Answer: Subclavian vein

Flashcard 9: The carina is _____ to ascending aorta and _____ to descending aorta

Answer: posterior

Flashcard 10: What are the major structures related to the mediastinal surface of the right lung?

Answer: 1. Heart (Right atrium) 2. Superior Vena Cava (SVC) 3. Inferior Vena Cava (IVC) 4. Azygos vein and its arch 5. Esophagus 6. Trachea 7. Right Phrenic and Vagus nerves

Extra: The mediastinal surface of the right lung is in contact with several key structures. The Azygos vein is a characteristic relation as it arches over the root of the right lung to drain into the SVC. The right atrium forms a large cardiac impression anterior to the hilum.