THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The right main bronchus subdivides into three secondary bronchi (also known as lobar bronchi), which deliver oxygen to the three lobes of the right lung-the superior, middle and inferior lobe. The azygos vein arches over it from behind; and the right pulmonary artery lies at first below and then in front of it.

Detailed explanation-2: -Anatomy of the Bronchi The right main bronchus subdivides into three lobar bronchi, while the left main bronchus divides into two. The lobar bronchi (also called secondary bronchi) divide into tertiary bronchi, each of which supplies air to a different bronchopulmonary segment.

Detailed explanation-3: -A note from Cleveland Clinic The bronchi are the passageways that connect your windpipe to your lungs. You have two main bronchi in your right and left lungs that divide and branch off into smaller segments, like tree branches.

Detailed explanation-4: -The right main bronchus is wider, shorter and courses more vertically (25 degrees to the median plane) 3 when compared to the left main bronchus 1, 2. It is approximately 2.5 cm long and 1.2 cm wide.