Vocal cord videos, because you demanded it!

A much better explanation than I can give:

https://www.youtube.com/watch?v=Q9sxCNTg97Y

https://www.youtube.com/watch?v=b89RSYCaUBo


In action:

https://www.youtube.com/watch?v=y2okeYVclQo

https://www.youtube.com/watch?v=9MDn5GgyxyU

https://www.youtube.com/watch?v=qcgkD2ep6CM