a question:

If the circulation system is a vaccuum, how can blood be removed, a tenth or a twelth of your supply at that, without putting a lot of stress on the whole system? nothing else can go in there, lest your heart slips from the vaccuum...but wouldnt the pressure from the void pulling be harmful in someway? Or is there some way the body compensates?

a question:

If the circulation system is a vaccuum, how can blood be removed, a tenth or a twelth of your supply at that, without putting a lot of stress on the whole system? nothing else can go in there, lest your heart slips from the vaccuum...but wouldnt the pressure from the void pulling be harmful in someway? Or is there some way the body compensates?

There's no "vacuum", Allisone. The blood move away from the heart under a slight pressure (remember hearing about 'blood pressure'?). It returns under three primary forces - gravity, muscular contraction (which pushes it along the veins), and finally when nearing the heart itself, a very small amount of suction. You could call that suction a partial vacuum but it only extends a very few inches from the heart.

last time I donated blood, I did a "double red" which means I gave two units of red blood cells. it was an interesting process.

they take your whole blood out into a centrifuge, which separates the plasma from the red cells, then they pump that plasma, along with room temp saline, back into your veins, then they do it again. the only problem is the cold ass saline that gets pumped into your veins. you can feel the cold liquid circulate, its strange.

HAHAHAHA, I laughed my ass off ..satyr..u... hahaha.
Aah, to Allison, the vial (attached to needle) that the phlebotomist uses to extract your blood has the vacuum in it. Also, as soon as your "system" is aware of any blood loss, it immediately begins to reproduce it. Oh god, now if I could just erase that pic of budda1....

last time I donated blood, I did a "double red" which means I gave two units of red blood cells. it was an interesting process.

they take your whole blood out into a centrifuge, which separates the plasma from the red cells, then they pump that plasma, along with room temp saline, back into your veins, then they do it again. the only problem is the cold ass saline that gets pumped into your veins. you can feel the cold liquid circulate, its strange.

Its whole blood donations.

Ye're right, Allisone ...I gave blood last week and died from it!!

Baron Max

lol, don't you just hate it when people totally miss the point of the post?

they wouldnt take my blood anyway because I dont weigh enough.

they wouldnt take my blood anyway because I dont weigh enough.

Then why are you so worried about the issue?

Baron Max