ELI5
Googles not doing it. Blood is carried through our veins but it’s also all over at once like when cut happens and that’s what give us our warmth, colour, nutrients etc. all over
I’m having trouble understanding how this blood is “all over” evenly spread.
The question is do we have free blood that not in veins and arteries? It’s seeming to me like we do???
How does blood “pool” and swell like a foot or a hand but not enlarge the veins and arteries if that’s where it’s carried?
Am I confusing myself?
EDIT!!! Y’all made that made that make so much more sense. So do capalaries end at where your pores begin? Like why you have blood in a popped pimple?
In: Biology
Veins and arteries are the big highways. Blood then spreads out into smaller *capillaries* that might be so narrow that only one red blood cells can go through them at a time. These capillaries don’t have to touch every single cell either. Nutrients and things get squeezed out of the blood vessels and directly “bathe” your tissues. Waste from your cells also goes out into this bath, and there’s a whole system in your body for cleaning and filtering this *lymph*. That’s what your lymph nodes do, btw.
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