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
To answer your edit, capillaries are basically everywhere that’s alive and has the ability to heal.
So the *very* outermost layer of skin (which includes dead cells which we shed) doesn’t really have them, and it’s why very shallow cuts or scrapes might not bleed at all. Very few organs/tissues don’t have capillary beds. Ligaments, tendons and cartilage often have very little or no blood supply, which is one of the reason they heal so badly. (or not at all)
What comes out of a pimple is typically not blood, or not just blood, it’s a mixture of bacteria, white blood cells (which can come out of the capillaries to fight infection) and debris/dead cells, but if it’s badly inflamed and the tissue around got damaged, then yes, you can get blood as well.
Latest Answers