Explanation:
Arteries room responsible for transferring blood to organs, traveling away from the heart, while veins are responsible for moving blood ago toward the heart. Arteries generally bring oxygenated blood to supply oxygen come organs, and also veins generally lug deoxygenated blood earlier to the heart for re-oxygenation. The singular exceptions room the pulmonary arteries and pulmonary veins. The pulmonary arteries still travel away native the heart, but carry deoxygenated blood indigenous the appropriate atrium come the lungs. The pulmonary veins still travel toward the heart, however carry oxygenated blood native the lungs to the left atrium.
You are watching: All arteries carry oxygen-rich blood, whereas veins carry oxygen-poor blood.
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Example concern #15 : Circulatory system
Which the the adhering to statements about the circulatory device is false?
Possible Answers:
The worse vena cava empties blood into the appropriate atrium
The appropriate ventricle pumps blood come the lungs
Veins always bring deoxygenated blood ago to the heart
Blood will constantly travel from arteries to capillaries, and also then into veins
Correct answer:
Veins always bring deoxygenated blood ago to the heart
Explanation:
A typical misconception is that veins constantly carry deoxygenated blood. Veins always return blood to the heart, however the pulmonary veins space bringing oxygenated blood ago to the heart so that it might be pumped to the body"s tissues. Deoxygenated blood travels with the right ventricle to the pulmonary arteries. In the lungs it is reoxygenated, then returned to the heart in the pulmonary veins.
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Example concern #16 : Circulatory device
What blood vessel kind contains the highest pressure?
Possible Answers:
Capillary
Vein
Arteriole
Artery
Correct answer:
Artery
Explanation:
Blood is maybe to flow through the blood vessels as result of pressure led to by the pump of the heart. The pressure is the greatest in vessels just leaving the love (arteries), and also decreases together the blood ship get additional away native the heart. Veins have actually the lowest pressures the end of all the blood vessels.
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Example concern #17 : Circulatory system
Which of the complying with is true of arteries?
Possible Answers:
Arteries absence an endothelial layer
The wall surfaces of arteries and veins are around the very same thickness in a provided tissue
Their walls space thick and muscular compared with veins
Their thick walls room due completely to the bulk of elastic yarn in the middle layer
Vein walls are thicker 보다 arteries because veins have to pump blood up from the reduced body
Correct answer:
Their walls space thick and muscular compared with veins
Explanation:
Arterial walls have actually three distinct layers: an inner smooth endothelium, a heavy coat of smooth muscle cells and also elastic fibers, and also a looser outer layer that connective tissue. Arteries room uniformly recognizable together robust, thick-walled structures compared with surrounding veins.
Although some veins have actually muscular fibers in their walls (for example, those in the legs), this class of cell is thin and often incomplete. Instead of muscle to counteract gravity, veins generally use valves to avoid blood from flow backward. Arteries, veins, capillaries, and the heart chambers all have an endothelial layer.
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Example inquiry #1 : understanding Circulatory ship
What vascular structure which tote oxygenated blood native the proximal pulmonary artery straight into the aorta the fetal mammals?
Possible Answers:
The umbilical vein
The ligamentum arteriosum
The umbilical arteries
The foramen ovale
The ductus arteriosus
Correct answer:
The ductus arteriosus
Explanation:
In fetal mammals, oxygenated blood return to the fetus via the umbilical veins. It then drains right into the best side that the heart. There would be no usage in sending out oxygenated blood into non-aerated lungs, so it is diverted v a channel, the ductus arteriosus, into the aorta of the fetus.
At birth, this structure closes rapidly, allowing blood to pass the lungs of the newborn. A residual tape of connective tissue, the ligamentum arteriosum, point out the site of the original structure. The foramen ovale is a developmental aperture in between the atria, and it usually closes spontaneously as the heart develops.
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Example question #19 : Circulatory mechanism
Which that the following statements is true around arteries and veins?
Possible Answers:
Both arteries and veins bring blood toward the heart
Neither arteries nor veins lug blood towards the heart
Arteries carry blood toward the heart; veins lug blood far from the heart
Arteries lug blood far from the heart; veins bring blood towards the heart
Arteries and veins both bring blood towards the heart and also away indigenous the heart, relying on their location
Correct answer:
Arteries bring blood far from the heart; veins bring blood toward the heart
Explanation:
The circulatory device of the body is composed of blood vessels. There are three main species of blood vessels: the arteries, the capillaries, and also the veins.
Arteries constantly carry blood far from the heart. Typically the blood is oxygenated; the exceptions room the pulmonary arteries, which carry blood away from the love to the lungs to come to be oxygenated. Veins carry deoxygenated blood towards to heart from tissue, with the exemption of the pulmonary veins, which bring oxygenated blood from the lung to the heart. Capillaries enable for exchange in between blood and tissue.
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Example concern #20 : Circulatory device
Is the blood uncovered in the jugular vein oxygen-rich or oxygen-poor, and why?
Possible Answers:
Oxygen-poor, since it carries blood from the heart come the head and also neck
Oxygen-rich, since it tote blood native the heart come the head and neck.
Oxygen-poor, due to the fact that it carries blood indigenous the head and also neck to the heart
Oxygen-rich, because it dead blood indigenous the head and neck come the heart
Correct answer:
Oxygen-poor, because it carries blood from the head and also neck to the heart
Explanation:
Begin through remembering that arteries bring blood far from the heart. Veins carry blood native the body back to the heart. Keep in mind that the distinction between the blood in arteries and veins does not lie in the oxygen-content. Rather, that lies in the direction of flow. Arteries always take blood far from the heart, conversely, veins always take blood back to the heart.
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Example concern #1 : knowledge Circulatory ship
Which of the adhering to is true of veins and arteries?
Possible Answers:
Veins carry oxygen-poor blood earlier to the heart via the pulmonary circuit
Arteries carry oxygen-rich blood ago to the love via the pulmonary circuit
Veins bring oxygen-rich blood back to the heart via the pulmonary circuit
Arteries carry oxygen-poor blood ago to the heart via the pulmonary circuit
Correct answer:
Veins carry oxygen-rich blood earlier to the heart via the pulmonary circuit
Explanation:
Arteries lug blood far from the heart. In all however one case, arteries carry oxygen-rich blood. The exemption is the pulmonary arteries. They carry oxygen-poor blood far from the heart, to the lungs, to pick up an ext oxygen. Veins lug blood back to the heart. In all yet one case, veins carry oxygen-poor blood. The exception is the pulmonary veins. They carry oxygen-rich blood indigenous the lungs back to the heart.
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Example concern #2 : knowledge Circulatory vessels
Which the the following contents of the circulatory mechanism contain valves?
Possible Answers:
Arterioles
Arteries
Veins
All the these
Capillaries
Correct answer:
Veins
Explanation:
Veins space the only circulatory vessels that contain valves. These structures contain valves because much the the pumping press that source in the heart has actually been lessened by the time blood will veins, which return deoxygenated blood to the heart. The palliation of force can reason the blood to swimming pool or move really slowly. Due to the fact that veins rely largely on gravity, blood circulation force (originating native the heart), and muscular contractions to squeeze blood v them, it makes sense because that them to have valves to save blood from flow backwards in between muscular contractions.
See more: Which Is Not An Agent Of Metamorphism ? Which One Of The Following Is Not An Agent Of
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Example question #3 : understanding Circulatory vessels
Which the the adhering to carries oxygen-poor blood?
Possible Answers:
Aorta
Pulmonary veins
Carotid artery
Femoral artery
Pulmonary arteries
Correct answer:
Pulmonary arteries
Explanation:
The pulmonary arteries are the only arteries the contain oxygen-poor blood since it carries blood into the lung to it is in oxygenated. By definition, arteries carry blood far from the heart and veins carry blood to the heart. However, the pulmonary vein is the only vein in the body that carries oxygen-rich blood (from the lungs back to the heart to be pumped into the remainder of the body) and also the pulmonary artery is the only artery in the body that carries oxygen-poor blood (to the lungs to it is in oxygenated before being sent out to the love to it is in pumped right into the remainder of the body. The carotid artery is in the neck and also delivers oxygen-rich blood to head. The femoral artery is in the leg and also delivers oxygen-rich blood come the leg. The aorta is the main artery that delivers blood native the left ventricle that the heart to the remainder of the body.
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