i was just looking for the answer to this question for my science homework, and found the answer, and here it is....
Oxygen
Water
Carbon dioxide
Nutrients
waste chemicals :)
capillaries
capillaries
Capillaries. They're so small that red blood cells are sometimes forced to travel single-file.
capillaries have walls thin enough to allow the exchange of materials between cells and the blood. Their extensive branching provides a sufficient surface area to pick up and deliver substances to all cells in the body.
they have a lot of jobs to doa high surface area to volume ratio, having walls only one cell thick only wide enough for red blood cells to travel single file - this maximizes exchange rate of substances into and out of capillarieslots of tiny vessels all around the body to ensure most efficient exchange of nutrients, oxygen, wastes etc. - body builders and very muscular people can develop more capillaries than non-athletic people because they need more nutrients and waste removal for their numerous muscle cells
Venule.
solid
through pulmonary veins
through your pulmonary artery and pulmonary vein.
Well it doesn't actually carry food down there. The blood carries nutrients and oxygen to your extremities through capillaries. These are very tiny veins that branch off from the veins connected to your arteries. When you prick your finger or toe the blood that comes out is actually from one of these capillaries.
yes they do
All substances.