So I was right, Joe F -- you and I were thinking the same riddle (sorta)

What has nine holes that when 8 is sealed, 1 is unsealed, and then when 1 is sealed the other 8 are open, or at least openable?

A human being:

The 9 holes are: 2 eyes, 2 ears, 2 nostrils, a mouth, a belly button and an anus. When the human is in the womb, the ears, eyes, nose mouth and anus are closed, and the belly button (one end of the ubilical chord, at least is open. After birth, the situation is reversed...