Wisdom teeth removal soon. Please help put my mind at rest.

I am getting my wisdom teeth removed in a few weeks and I am worried. I am a worried person by nature. My current concern is this:

I will be put to sleep while getting 4 wisdom teeth taken out, as well as a mucocele surgery that is piggy backed on. I am worried that when I am put out, I will choke on my spit due to my mouth being open and crowded with stuff. I understand how silly this probably is as these surgeries happen all the time and there must be a reason why this doesn't happen. All I really want to know is why I wouldn't choke on my spit and blood during the surgery. I am mostly worried because during other mouth procedures I remember trying to gulp and I couldn't that well, and this time I will be sedated.

So that's the current dilemma my mind is facing. If anyone could put my mind at ease I would GREATLY appreciate it. Thanks, A.A.