The blood cells are in the capillaries and are moved along in the capillaries. Your question makes no sense.
When blood capillaries flow past cells, diffusion of oxygen, wastes, and nutrients occurs. This transfer maintains cellular homeostasis.
As blood flows through capillaries, it exchanges nutrients, wastes, and oxygen with body tissues. This transfer is accomplished via diffusion.
There is an exchange with oxygen, nutrients, and carbon dioxide and water vapor.
Blood flows in capillaries, but there is blood leaks out from the capillaries, known as tissue fluid or interstitial fluid.
Generally blood from the capillaries flows into venules which lead into larger veins and is then pumped to the heart. However there are a few exceptions where capillaries lead from one artery to another artery, but this only happens in the glomerular capsule of the kidney and the hypothalamus.
more rapidly, in the capillaries the blood cells flow in "single file". In the veins, multiple cells are allowed to pass at once
alveoli take co2 from your blood and turns it into gas
the oxygenated blood flows from arteries to capillaries and after the exchange of material in capillaries and tissues it goes to vein and veins carries this deoxygenated blood to heart.
This isn't a definite answer but blood probably goes slower when it travels through capillaries, this is probably because it is basically being filtered.
There is an exchange with oxygen, nutrients, and carbon dioxide and water vapor.
capillaries
Blood flows to the capillaries before reaching the cells because capillaries are the smallest and most abundant blood vessels, facilitating the exchange of oxygen, nutrients, and waste products. This extensive network of capillaries provides a large surface area and ensures that blood comes into close contact with cells, allowing for efficient diffusion. By reaching the capillaries first, blood can deliver essential substances directly to the tissues and remove metabolic waste effectively.