Question
Which of the following structures does not pass through the aortic opening?
| A. |
Azygos vein
|
| B. |
Aorta
|
| C. |
Thoracic duct
|
| D. |
Vagus nerve
|
Show Answer
|
Correct Answer � D
Explanation
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|
The aortic opening (also called the aortic hiatus) is one of the openings in the diaphragm through which certain structures pass from the thoracic cavity into the abdominal cavity.
The aortic opening (aortic hiatus) transmits the aorta, thoracic duct, and azygos vein at the T12 level.
The vagus nerve passes through the esophageal hiatus at the T10 level, along with the esophagus, and does not pass through the aortic opening.
