The blood vessels that carry blood away from the heart, arteries, need to withstand the pressure exerted by the heart as it pumps to the blood to the lungs and to all the tissues of the body. These have thicker muscular walls, veins deal with far less pressure, so their muscular layer is thinner.
Arteries carry more blood volume than veins. They also carry the blood away from the heart - meaning they need to be stronger than veins, as they need to push the blood round the body. Veins are simply the 'return' mechanism and don't need to be as strong.
It has a thick, muscular wall for carrying blood at high pressure. Veins carry blood at a low pressure, so don't need such thick and muscular walls.
Arteries have thicker walls than veins. Arteries must be able to withstand the higher pressure from the volume of blood being pumped through them.
arteries
Vasodilation is the widening of blood vessels resulting from relaxation of the muscular wall of the vessels. Usually occurs during exercise, so that more oxygenated blood can be pumped to the body's tissues. Vasodilation is the widening of blood vessels resulting from relaxation of the muscular wall of the vessels. Usually occurs during exercise, so that more oxygenated blood can be pumped to the body's tissues.
Vaso meaning blood vessels and constriction meaning narrowing. Vasoconstriction is when your blood vessels become smaller or more narrow. This applies to arteries, veins, etc. A common vasoconstricter is Visine, because it constricts the blood vessels in the eye which is why your sclera turns from red to white.
All blood vessels can stretch to an extent. However, arteries are most flexible because they have more muscular fibers in their walls.
An earthworm has a circulatory system consisting of four or more ventral blood vessels and one dorsal blood vessel that is also its heart. Most of the pumping of blood is performed by general muscular movements.
The blood vessels will be more thinner, blood cannot pass smoothly and thus you will have blood pressure.
The trachea or windpipe., One of the vessels or tubes which carry either venous or arterial blood from the heart. They have tricker and more muscular walls than veins, and are connected with them by capillaries., Hence: Any continuous or ramified channel of communication; as, arteries of trade or commerce.
the three types of blood vessels are the arteries, veins, and capillaries. Read more:
describe and explain the relationship between the diameter of vessels and the velocity of blood
Long term alcohol use causes the blood vessels to become more fragile and prone to rupture. Alcoholics have a much higher risk of stroke, aneurysms esophageal varicies and bleeding disorders.
BLOOD
well if you have been working out for a long time than you blood vessels will start to pop out. the more muscle you have the more vessles you have popping out.
ACE inhibitors make blood vessels relax, which helps lower blood pressure and allows more oxygen-rich blood to reach the heart