Akademik

true vocal cords
Anat.
the lower pair of vocal cords, the edges of which can be made to tense and relax by the passage of air from the lungs, thus producing vocal sound. Also called vocal folds. Cf. false vocal cord, vocal cords.

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true vocal cords,
the lower pair of vocal cords, which produce the sound of voice.

Useful english dictionary. 2012.