The size of blood vessels varies enormously, from a diameter of about 25 mm (1 inch) in the aorta to only 8 μm in the capillaries.
Blood pressure increases if the diameter of the blood vessel decreases.
If the blood vessel is blocked , it then leads to a serious problem like a heart attack.
It decreases the size.
When a blood vessel breaks or pops, it can lead to bleeding, which may occur internally or externally depending on the location of the vessel. This can result in bruising, swelling, or more serious conditions like hemorrhage if significant blood loss occurs. The body typically responds by forming a clot to seal the break and prevent further bleeding. However, the severity of the situation often depends on the size of the vessel and the amount of blood lost.
Removing a broken blood vessel depends on its size and location. Surgical intervention include ligation in cases of medium to large vessels. Oftentimes, blood removal is sufficient to treat a bleeding blood vessel.
Vascular resistance is influenced by factors such as vessel radius, vessel length, blood viscosity, and vessel compliance. Changes in these factors can impact the resistance to blood flow in the vasculature, affecting blood pressure and overall circulatory function.
it might have internal bleeding
The flow of blood to tissues beyond the clot may be cut off
Clotting in an unbroken blood vessel is known as thrombosis. This occurs when a blood clot (thrombus) forms within a blood vessel, potentially obstructing blood flow. Thrombosis can lead to serious complications, such as deep vein thrombosis or pulmonary embolism, depending on the location of the clot. It can be triggered by factors like injury to the vessel wall, slow blood flow, or abnormalities in blood composition.
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.
Dilation of a blood vessel is the term for physiologic widening of the vessel. Abnormal widening of the blood vessel through a weakening of the wall is known as aneurysm.Dilation of a blood vessel means widening of the vessel.
Blood vessel on the bottom of a worm Blood vessel on the bottom of a worm