Helium will vibrate your vocal chords, like "normal" air does, but since helium is lighter than the air we normally breathe and has different properties it causes the vocal chords to resonate at a much higher pitch. That's why people sound as if their voice is a sped-up recording when they talk after breathing it.
Though it's amusing on occasion, breathing helium in regularly probably is not a good idea. It might not permanently damage the vocal chords, but anything breathed into the lungs will likely eventually make it into the bloodstream and then the veins. You don't want helium to replace the oxygen that normally travels to your brain. In fact, if you were in a sealed room filled with more helium than normal air you would probably suffer brain damage or death from oxygen deprivation.
This condition is typically the result of unstable blood vessels in the vocal cord that can rupture.
A surgery might cure a vocal cord dysfunction, but there is no guarantee at any time with a surgery. Some vocal cord dysfunction could be helped with exercise or rest.
A vocal cord produces your voice. its located inside the larynx, which is in the throat area near the Adams apple.
heilum is lighter
No
Congestion of a vocal cord typically means that you have excess mucus buildup in your vocal cords. To fix this, simply gargle a bit of mouthwash and use lozenges.
arytenoid cartilages by vocal ligaments
Vocal cord nodules and polyps are noncancerous growths on the vocal cords that affect the voice.
Larynx.
A disease of the larynx. As this is an umbrella term for any disease of the larynx, there are many, including laryngitis, vocal cord polyps and vocal cord paralysis.
parrot
Ripping out your vocal cords.