Oxygen and other gases pass through the capillaries.
The function of the blood vessel is to pass oxygen through the body via the blood.
With one exception, veins carry oxygen-poor blood back to the heart. The largest and last blood vessel they pass through is called the superior vena cava. The exception is the Pulmonary Vein, which carries oxygen-rich blood from the lungs to the heart to be pumped to the rest of the body.
With one exception, veins carry oxygen-poor blood back to the heart. The largest and last blood vessel they pass through is called the superior vena cava. The exception is the Pulmonary Vein, which carries oxygen-rich blood from the lungs to the heart to be pumped to the rest of the body.
Capillary
Nutrients pass through the capillaries (a type of blood vessel) in the small intestine.
A stroke occurs when there is a blocked vessel in the brain. If there is a blockage, no oxygen will pass through, thus a stroke occurs. It's not a heart disease nor is it a disorder.
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.
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The alveoli and capillaries in the lungs pass oxygen to the blood. Both have very thin walls, which allow the oxygen to pass from the alveoli to the blood. The capillaries then connect to larger blood vessels, called veins, which bring the oxygenated blood from the lungs to the heart.
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.
Oxygen is able to pass into your blood through diffusion. In the lungs, oxygen moves from the alveoli in the lungs into the surrounding capillaries where it binds to hemoglobin in red blood cells for transport throughout the body.
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.