ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They have thick walls and transport blood away from the heart.
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They have thick walls and transport blood toward the heart.
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They have thin walls and transport blood away from the heart.
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They have thin walls and transport blood toward the heart.
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Detailed explanation-1: -Final answer: The correct statement that describes arteries is they have thick elastic walls without valves inside, blood flows under high pressure and carries blood away from the heart to different parts of the body.
Detailed explanation-2: -Arteries. Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues.
Detailed explanation-3: -What is an Artery? Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving.
Detailed explanation-4: -Arteries and arterioles have thicker walls than veins and venules because they are closer to the heart and receive blood that is surging at a far greater pressure (Figure 18.2. 2).
Detailed explanation-5: -Arteries and arterioles have relatively thick muscular walls because blood pressure in them is high and because they must adjust their diameter to maintain blood pressure and to control blood flow.