What is the cardiac notch and where is it located?

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Multiple Choice

What is the cardiac notch and where is it located?

The cardiac notch is an indentation on the left lung’s anterior border where the heart rests against the lung. Because the heart sits more to the left side of the chest, the left lung has this concave area to accommodate it, especially around the region of the left ventricle. It’s not a feature of the right lung, not a small opening in a ventricle, and not a ridge on the trachea. So the notch is best described as an indentation on the left lung.

The cardiac notch is an indentation on the left lung’s anterior border where the heart rests against the lung. Because the heart sits more to the left side of the chest, the left lung has this concave area to accommodate it, especially around the region of the left ventricle. It’s not a feature of the right lung, not a small opening in a ventricle, and not a ridge on the trachea. So the notch is best described as an indentation on the left lung.

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