Refer to the figure below of a sagittal, T1-weighted MRI of the heart with left atrium.

-Which arrow points to the left mainstem bronchus?
A) A
B) B
C) C
D) D

Question

Refer to the figure below of a sagittal, T1-weighted MRI of the heart with left atrium.
 
-Which arrow points to the left mainstem bronchus?
A) A 
B) B 
C) C 
D) D

Quizplus · Accepted Answer

The left mainstem bronchus is located anterior to the esophagus and posterior to the descending aorta. Arrow B points to the anatomical location of the left mainstem bronchus on this MRI image. Arrows A, C, and D do not point to the left mainstem bronchus.

Refer to the Figure Below of a Sagittal, T1-Weighted MRI