Which lumen is considered the bronchial lumen?

The blue one
True or false.
Endobronchial tubes use the same size soft suction catheters as regular ETT
False suction catheters must be smaller than 14 French
In which direction, in relations to the body, must the curve of the distal lumen of the endobronchial tube be pointing up on intubation
Anteriorly. Easier to maneuver into the glottis
Which endobronchial tube is this?

univent
What is the tip called of the univent bronchial blocker

Coude tip
What is the ID size and OD size of univent
ID = 7 mm
OD = 11/12 mm
What device is this?

Arndt device