The structures at the level of the left pulmonary hilum are located as follows:
a. Most superior is the principal bronchus
b. Most inferior is the principal bronchus
c. Most inferior is the pulmonary artery
d. Most inferior is the pulmonary vein
e. The middle-positioned structure is the pulmonary vein
The correct answers are:
a. Most superior is the principal bronchus
c. Most inferior is the pulmonary artery
The structures at the level of the left pulmonary hilum, from superior to inferior, are:
1. Principal bronchus (a)
2. Pulmonary artery (c)
3. Pulmonary vein (d or e, depending on the specific vein)
The principal bronchus is the most superior structure, followed by the pulmonary artery, and then the pulmonary vein.