Page 2 - LN

 It is at the upper end of the windpipe.
 Two vocal cords are stretched across the voice box or larynx in such a way that
it leaves a narrow slit between them for the passage of air.
 When the lungs force air through the slit, the vocal cords vibrate, producing
sound.
 Muscles attached to the vocal cords can make the cords tight or loose.
 When the vocal cords are tight and thin, the type or quality of voice is different
from that when they are loose and thick.