No, but the closeness in orientation explains why foot rubs are erotic. Stimulation of the foot and toe region of the brain will affect the neighboring genital region causing arousal.
I'm an EEG/Sleep technologist and an older coworker just gifted me an ancient book with a similar image inside that may have the genitals. I'll check when I'm back in my office and upload if applicable. 👍🧠🍆
Feet are a very common sexual fetish and this observation you made has been theorized to partly be responsible for that. Maybe those nerves from feet/genitals sometimes talk to each other.
Does anybody else ever feel like this, physically? Like right as they are drifting off to sleep, or coming out of a dream? Or during a fever? I swear- I have felt like my hands and tongue and mouth are HUGE many, many times.
This is how creatures "look" in Dwarf Fortress to the game itself, since they're only programmed to have parts; but there is nothing that distinguishes where the parts actually... Are?
Someone made a mod that visually represents every monster in the game the way the program is connecting the parts together and it's pretty fucking funny. It's also how you can do absurb things like biting something's foot while you're stuck in a headlock in their armpit.
It’s a map of the surface of one part of the brain. Imagine a Star Trek scanning beam going across your head from right to left, about where your ears are. This is a picture of half of that part of the brain (the other part is a left/right mirror image of this picture).
So the cells along the surface of the brain here are connected to the sensory nerves in your body and this is a map showing which body parts are where. So if you move to the top of the brain it is the area where you feel sensation from your abdomen. Go further down the side and you get to arms and then hands, then face. Notice that sensitive areas of your body are much bigger (hands, face) because a lot more brain tissue is devoted to those areas.
Depending on the elasticity of the brain, brain damage can make other parts of the brain take over for damaged areas (after a terrible recovery process).
In fact, it's possible for a brain to be almost entirely empty space and people learn about it decades into their normal lives.
There are regions inside the brain that usually take care of certain functions but it's not like there's a specific area that's guaranteed to be designated to specific nerves. Every brain is different, the schematics are generalisations that'll work well enough most of the time.