Arteries have to deal with a large and rapidly changing pressure, to do this without breaking they have to expand. However expanding reduces the blood pressure so it is important for the artery to spring back into shape. Veins don't need to worry about all that, so have thinner walls.
They have to deal with the constant pressure of the heart pumping the blood at different speeds. If your arteries did not have elasticity, they would have a higher blood pressure because they would not be able to expand and allow more blood to travel through at a slower rate
Arteries have to be thicker because they have to contain blood at higher pressure. The heart pumps blood into arteries, creating pressure. Veins merely collect blood after it passes through the capillaries; the circulation is driven by valves inside the veins, rather than by the pumping of the heart.
Arteries are more elastic than veins because they are designed to withstand tremendous blood pressures.
Veins, on the other hand, contain blood at relatively low blood pressure. That's why they have evolved valves to prevent the blood from going backwards.
Why do veins seem to have less elasticity than arteries?
They are not really, it only seems that way because veins are smaller in diameter and received less of the enzyme that promote elasticity given by an enzyme during growth development which come from skeletal cartilage. A bony cartilage, or cartilage in generals are made up of many cells, that has combines together forming this structure.
they aren't
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The arteries are more elastic to withstand the greater pressure. Without elasticity they would likely burst.
Arteries carry blood away from the heart so they need thick muscular elastic walls to withstand the high pressure that occurs as the heart pumps blood.
vein walls are thicker
They have a current issue inside of it.
Yes, arteries have elastic lamina.
true
left ventricle --> elastic arteries (aorta and its larger branches)--> Muscular arteries --> arterioles --> capillaries
Arteries contain elastic fibres. These are particularly abundant in the large conducting arteries, such as the aorta.
The conducting arteries, which are the high pressure arteries (eg. aorta and pulmonary), are high in elastic fibres. These fibres store energy to help to push blood forward during diastole (heart relaxation).
The term Elastic Arteries usually refers to the ability of blood vessels to dilate and constrict freely.
The elastic walls helps regulate blood pressure.
Yes blood passes through Elastic Arteries, Muscular Arteries, and then Arterioles.
Elastic arteries are also known as conducting arteries because they carry large volumes of blood away from the heart. They are large vessels with diameters up to 2.5 cm (1 in.) (Figure 21-2). The pulmonary trunk and aorta, as well as their major branches (the pulmonary, common carotid, subclavian, and common iliac arteries), are elastic arteries. The walls of elastic arteries are extremely resilient because the tunica media contains a high density of elastic fibers and relatively few smooth muscle cells.
elastic connective tissue
tunica media
dense connective tissue, elastic