In an average person, all the blood vessels, veins, arteries, and capillaries lined up one to the other can go around the world at least twice.
It reveals their elasticity. When the heart contracts and forces blood into the large arteries near the heart, they stretch to accommodate the greater blood volume (systolic pressure). Then, as the blood continues on in the circuit, their walls recoil, keeping pressure on the blood which keeps it moving (diastolic pressure).
muscular arteries
Arteries do neither
The arteries
the answer is stretch
arteries is the answer
arteries is the answer
Arteries are high-pressure vessels. However, this pressure is not constant. As the heart pumps blood into the arteries, the pressure dramatically increases. They must stretch to accommodate this change, or risk rupturing.
Elastin and collagen.
These Receptors are present in Carotid and Aortic Arteries of Tetrapods and they have a vital role in regulation of Blood Pressure.
In an average person, all the blood vessels, veins, arteries, and capillaries lined up one to the other can go around the world at least twice.
Bad experiment - veins don't hardly stretch (no elastin in walls), what they do is collapse.
Arteries have thick, muscular walls that stretch when the heart pushes blood into it. Veins join many times to form larger and larger veins.
The elastic arteries are huge and allow for large amounts of blood to go through them. They need elastic fibers so they can stretch and return to their original state--basically they want to make it easy for large amounts of blood to pass through. Muscular arteries are responsible for getting blood to various locations, so they contract and dilate according to the immediate needs of the tissue they are supplying.
It reveals their elasticity. When the heart contracts and forces blood into the large arteries near the heart, they stretch to accommodate the greater blood volume (systolic pressure). Then, as the blood continues on in the circuit, their walls recoil, keeping pressure on the blood which keeps it moving (diastolic pressure).
All blood vessels can stretch to an extent. However, arteries are most flexible because they have more muscular fibers in their walls.