Question

Difference between left bronchi and right bronchi

Answer 1

The right main bronchus is wider, shorter than the left main bronchus, which is thinner and longer. The right main bronchus subdivides into three lobar bronchi, while the left main bronchus divides into two.

The right main bronchus is wider, shorter, and more vertical than the left main bronchus, its mean length is 1.09 cm.It enters the root of the right lung at approximately the fifth thoracic vertebra. 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 left main bronchus is smaller in caliber but longer than the right, being 5 cm long. It enters the root of the left lung opposite the sixth thoracic vertebra. It passes beneath the aortic arch, crosses in front of the esophagus, the thoracic duct, and the descending aorta, and has the left pulmonary artery lying at first above, and then in front of it

Answer 2

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The right main bronchus is wider, shorter than the left main bronchus, which is thinner and longer. The right main bronchus subdivides into three lobar bronchi, while the left main bronchus divides into two.