The true vocal cords
appear pearly white in colour and contains the vocal ligaments, which in turn are the thickened medial edges of the thyro-aryteniod muscles.
Basement membrane is visible separating the surface epithelium from the underlying connective tissue of lamina propria (Fig-1) The epithelium lining the true vocal cords
appear to be similar to the one lining the entire ventricular cavity.
True vocal cords
are most frequently affected in laryngeal TB followed by the epiglottis, false cords and ventricles, arytenoids, posterior commissure and subglottic area.
A specialized ETT was accurately placed such that the surface electrode was in contact with the true vocal cords
, and the integrity of the NM system was confirmed by tapping test.