Blood: Blood is a vital fluid in the body. It consists of water, blood cells, nutrients, body chemicals, oxygen and carbon dioxide. Blood is part of the cardiovascular system. Answer and Explanation:1 Veins carry blood to the heart. After blood has nourished all of the cells in the body...
语法标注解释 vein英音：[vein]美音：[ven]名词 n. [C]1.静脉,血管 Just over each temple there were little blue veins.就在两鬓太阳穴上面显露着青色的细小静脉。2.【植】叶脉 3.【动】翅脉 4.【地】矿脉 After years of prospecting, they struck gold veins.经过多年勘探之后,他们找到了金...
Which blood vessel circulates oxygenated blood to the heart tissue for cellular respiration? What are large blood vessels that carry oxygenated blood away from the heart called? Which blood vessel delivers blood to the right atrium? \\ A) vena cava. \\ B) pulmonary artery. ...
Arteries and veins (also called blood vessels) are tubes of muscle that your blood flows through. Arteries carry blood away from the heart to the rest of the body. Veins push blood back to your heart. You have a complex system of connecting veins and arteries throughout your body. Bas...
:blood vessel especially:any of the tubular branching vessels that carry blood from the capillaries toward the heart 2 a :any of the vascular bundles forming the framework of a leaf b :any of the thickened cuticular ribs that serve to stiffen the wings of an insect ...
Near to D. Next to Correct Answer B. Away from ExplanationArteries carry blood away from the heart. Rate this question: 2 0 2. The blood in the arteries moves under low pressure. A. True B. False Correct Answer B. False ExplanationThe blood in the arteries moves under ...
vein,blood vessel that returns blood to theheart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. The oxygen-depleted blood passes from thecapillariesto the venules (small veins). The venules feed into larger veins, whi...
Varicose veins occur when valves in the leg veins, which carry the blood from the legs toward the heart, no longer function, causing blood to pool in the legs.PROGRESSIVE AND PREVALENT Given the prevailing misconception that varicose veins are only a cosmetic issue, the majority of the over...
vein, blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the heart, veins carry deoxygenated blood. The oxygen-depleted blood passes from the capillaries to the venules (small veins). The venules feed into larger veins...
点评:固定词组,be believed to意思“被认为”,句子 The heart is believed to pump blood into veins(血管) which are netted all over the body, thus keeping a person alive.是个关系代词which引导的定语从句,先行词是veins,从句是which are netted all over the body。