so you haven’t touched on the circulatory system of centaurs in your biology posts. hear me out: y’know how giraffe circulatory systems are kinda whack going up their neck so that they don’t immediately pass out if they bend their head down? Do you think, if we theoretically place a robust heart within the horse body (i can’t imagine a heart big enough to power a centaur would fit in the human bit), centaurs would need something similar so they can bend down quickly w/o their heads exploding?

drferox:

You would have to place the heart in the equine body, there’s not enough space within the human chest without it vibrating and shaking all the time.

There’s a decent distance between the horse heart and the human head, though you’d likely need to have a super tough aorta and a series of valves within those blood vessels to regulate blood pressure to the head when it moves. Brains are very particular about how much blood pressure they like to function, and the giraffe is a pretty good real world model.

Would something like a ‘booster’ heart be a possibility? Maybe a small heart up where the human one would be? I know that’s not a thing that mammals have in our world, but I feel like it might be a decent approach to the problem.