@Emilski - I do not know anything about the medulla or medulla oblongata, except what is written in this article, but I can say that this is a very popularly known part of the brain for a strange reason.
I remember first hearing of the medulla oblongata when watching the Adam Sandler movie "The Waterboy." In the movie the professor states that anger and aggression in alligators comes from the medulla oblongata, but I never knew how true this was or if it was true at all. I feel like it could have some validity to it, but it is also a very funny sounding name the people who made the movie might have picked for this scene.
Anyway, whenever I hear this part of the brain mentioned I hear this exact same explanation to its function and it most definitely came from the person watching this scene of the movie.
Also even if it were true and the movie were one hundred percent accurate in the movie it stated that it functioned that way in alligators and not humans, they could have completely different functions depending on the organism and even the species.