Capillary
Oxygen and other gases pass through the capillaries.
White blood cells pass through the vessel wall into surrounding tissue through a process called diapedesis. During diapedesis, the white blood cell first attaches to the endothelial cells lining the blood vessel. It then squeezes through these cells to reach the surrounding tissue where it can carry out its immune functions.
The function of the blood vessel is to pass oxygen through the body via the blood.
Nutrients pass through the capillaries (a type of blood vessel) in the small intestine.
Thrombosis is when a blood clot forms inside a blood vessel. This causes a blockage in the circulatory system so that blood cannot pass through freely.
The blood is pumped down the aorta and then into the renal artery. When the blood is deoxygenised, it is returned to the heart via the renal vein and later the vena cava.
Pass through artery walls
Lumen refers to the inner space within a tubular structure such as a blood vessel or intestine, through which substances pass. It is not a measure of size like red blood cells but rather the open space within the structure. Red blood cells are typically around 6-8 micrometers in diameter, much larger than the lumen of small blood vessels.
when blood is in vessel, the blood may be black.
A blood cell must pass through two heart valves to travel from the brain to the lungs. As it exits the brain through the superior vena cava, it passes through the tricuspid valve, then through the pulmonary valve to reach the lungs for oxygenation.
oxygen has to pass through them to make blood rich