ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Arteries always carry oxygenated blood while veins always carry deoxygenated blood.
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Arteries are provided with valves while veins are devoid of valves
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Arteries always carry blood away from the heart, while veins always carry blood towards the heart
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Venous blood is returned to the left auricle
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Detailed explanation-1: -Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should.
Detailed explanation-2: -The first and most important difference between the two is that all arteries carry blood away from the heart, and all veins carry blood to the heart from outlying areas. Most arteries carry oxygenated blood, and most veins carry deoxygenated blood; the pulmonary arteries and veins are the exceptions to this rule.
Detailed explanation-3: -Answer and Explanation: The correct answer is A. Arteries carry blood away from the heart, and veins carry blood toward the heart.
Detailed explanation-4: -Arteries carry oxygenated blood from the heart, while veins carry oxygen-depleted blood back to the heart. An easy mnemonic is “A for ‘artery’ and ‘away’ (from the heart).” (The exceptions to this general rule are the pulmonary vessels.
Detailed explanation-5: -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.