<P> The right main bronchus is wider , shorter , and more vertical than the left main bronchus . It enters 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 azygos vein arches over it from behind ; and the right pulmonary artery lies at first below and then in front of it . About 2 cm from its commencement it gives off a branch to the superior lobe of the right lung , which is also called the eparterial bronchus . Eparterial refers to its position above the right pulmonary artery . The right bronchus now passes below the artery , and is known as the hyparterial branch which divides into the two lobar bronchi to the middle and lower lobes . </P>
<P> The right main bronchus is wider , shorter , and more vertical than the left main bronchus . It enters 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 azygos vein arches over it from behind ; and the right pulmonary artery lies at first below and then in front of it . About 2 cm from its commencement it gives off a branch to the superior lobe of the right lung , which is also called the eparterial bronchus . Eparterial refers to its position above the right pulmonary artery . The right bronchus now passes below the artery , and is known as the hyparterial branch which divides into the two lobar bronchi to the middle and lower lobes . </P>
what is the function of bronchi in respiratory system
what is the function of bronchi in respiratory system
deliver oxygen
deliver oxygen