by means o chorva
yes
Yes, Diapedesis is a process by which "white blood cells" escape from the capillaries into the tissue spaces, but not RBCs and Platlets.
The round cells that move in the blood capillaries are called RED BLOOD CELLS.
Materials needed by the cells move from the blood into the cells, and waste materials move from the cells into the blood.
Red blood cells move in single file in the capillaries. This movement maximizes diffusion.
Capillaries
Blood does not move faster through the capillaries. Blood flow is slowest in the capillaries.
The blood cells must move through the capillaries in a single file line because the diameter of the capillary is only slightly larger than the diameter of the blood cells - there isn't room for two blood cells to go through side by side.
more rapidly, in the capillaries the blood cells flow in "single file". In the veins, multiple cells are allowed to pass at once
Red blood cells carry most carbon dioxide wastes away from the cells of the body.
white blood cells
Red blood cells have to pass through capillaries in a single file so the cells move fairly slowly. Because arteries have enough space to allow multiple red blood cells to pass side by side, blood flows fairly quickly. Therefore, blood moves more rapidly in arteries.
Chemotaxis