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Views of segmental bronchi, azygos system of veins, sympathetic trunks and costovertebral joints

Segmental bronchi of right lung, lateral view

Image #126A-2

KEYWORDS: Lung, Right lung.

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Views of segmental bronchi, azygos system of veins, sympathetic trunks and costovertebral joints

Segmental bronchi of right lung, lateral view

The branches of the right pulmonary artery have been cut away from the specimen shown in the previous photograph to expose the segmental divisions of the right bronchus. The upper lobar bronchus (2) divides into apical, posterior and anterior segmental bronchi (1, 11). The middle lobar bronchus (13) divides into lateral and medial segmental bronchi (15). The inferior lobar bronchus (4) gives off a superior segmental bronchus (3) and continues downward to divide into four basal segmental bronchi (4, 6, 7, 8). In this specimen it is apparent that the lateral ramus (5) of the anterior basal segmental bronchus has a high origin from the lobar bronchus.

1 .	Upper pointer: Apical segmental bronchus Lower pointer: Posterior segmental bronchus
2 .	Upper pointer: Superior lobar bronchus Lower pointer: Bronchial branch of thoracic aorta
3 .	Superior segmental bronchus
4 .	Upper pointer: Inferior lobar bronchus Lower pointer: Medial basal segmental bronchus
5 .	Anterior basal segmental bronchus (lateral branch, originating abnormally high)
6 .	Posterior basal segmental bronchus
7 .	Lateral basal segmental bronchus
8 .	Anterior basal segmental bronchus
9 .	Azygos vein (covered by pleura)
10 .	Apical branch of right pulmonary artery (cut off)
11 .	Anterior segmental bronchus
12 .	Right pulmonary artery
13 .	Medial lobar bronchus
14 .	Right superior pulmonary vein (cut off)
15 .	Upper pointer: Lateral segmental bronchus Lower pointer: Medial segmental bronchus
16 .	Right inferior pulmonary veins
* .	[Legend above restored translation from Latin]