Porta

For the Forerunner artifact, see Portal. A Porta is a sphincter-like orifice embedded into the floors and walls of Flood hives that acts as the Flood analog to doorways. Portas were sighted in the Flood-infested High Charity in the Halo 3 multiplayer map Isolation and on the Flood den in Halo Wars.

Trivia

 * Portas are comprised of seven segments, and there are seven Portas on the level Cortana.
 * The name "porta" probably comes from the Greek word porta (πόρτα), which means "door".
 * On the Halo 3 multiplayer map Isolation there is one Porta. Sliding down a hole on the top part of the map will lead the player to slide down a tube. A Porta will open, leading into a Flood-infested cave.
 * There is a running joke among gamers that the Portas are the Gravemind's intestinal openings, due to their sphincter-like appearance.

List of appearances

 * Halo 3
 * Halo Wars