How is the structure of blood vessels related to their function
Answers
Answer:
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Explanation:
Arteries transport blood away from the heart and branch into smaller vessels, forming arterioles. Arterioles distribute blood to capillary beds, the sites of exchange with the body tissues. Capillaries lead back to small vessels known as venules that flow into the larger veins and eventually back to the heart.
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Answer:
• The structure of the blood vessels regulate and decide what functions would be performed by them.
Explanation:
• There are mainly three types of blood vessels, they are arteries, veins and blood capillaries which circulates the blood throughout the body.
• While arteries carry the oxygenated blood from the heart to the cells of the body, Veins helps in carrying the deoxygeneted blood from the cells to the heart. ( exception pulmonary artery and pulmonary vein)
• Arteries and veins are thicker than capillaries which is very thin blood vessels because they had to reach the cells.
• Both Arteries and veins are three layered structures.
• But the wall of arteries are thicker than the walls of the veins because the blood is pumped out into this directly from the heart, therefore it flows with much pressure, and to contain this pressure the walls of arteries are thicker than the veins.
• Similarly, veins are made of three layers of walls and valves. This valves are special feature of the veins which prevents the back flow of the blood from the organs.
• This structural differences are crucial for the proper functioning of these blood vessels.