system
Given the following post, respond as if you're commenting on Reddit:
human
How does an ovary decide which egg to drop?

When the body drops an egg from the ovary in anticipation of being fertilized,  how is the specific egg chosen? Is there a queue of eggs waiting in a funnel-like system that switches every other month? Is it completely random?
gpt
They don't necessary drop in order, as if they were on a production line.  Multiple eggs begin to start towards the path of "dropping" at a time.  The egg that gets to drop is the first one to grow large enough to rupture (corpus hemorrhagicum). That rupture release hormones that revert the other candidates.