Bronchoscopy

RB1	Apical	Upper lobe		LB1 & 2	Apico-posterior	Upper lobe proper
RB2	Posterior			LB3	Anterior
RB3	Anterior			LB4	Superior	Ligula
RB4	Lateral	Middle lobe		LB5	Inferior
RB5	Medial			LB6	Apical	Lower lobe
RB6	Apical	Lower lobe		LB7 & 8	Anterior basal
RB7	Medial basal			LB9	Lateral basal
RB8	Anterior basal			LB10	Posterior basal
RB9	Lateral basal
RB10	Posterior basal
RC1	Carina between right upper lobe bronchus and bronchus intermedius			LC1	Carina between left upper lobe and lingular bronchus.
RC2	Carina between middle lobe and right lower lobe bronchus			LC2	Carina between lingula and left lower lobe bronchus.

Normal anatomical orientation of the tracheobronchial tree in an adult human

*To know more about bronchoscopy download: Bronchoscopy.pdf