system
Given the following post, respond as if you're commenting on Reddit:
human
How long is the Vagus nerve?

How long is the vagus nerve, end to end? Not counting branches (or is someone actually approximated that, awesome.)

I tried finding an answer and failed!
gpt
Vagus' nuclei are in the medulla oblongata, which is inside your skull, towards its base. The lower-most fibers innervate the small intestine, which runs below your belly button. If you touch the base of your skull with one hand and your pubic symphysis (the bony bump below your belly and above your genitals) with the other hand, that's close to the length of the vagus nerve.