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...
1.Any of the blood vessels that carry blood toward the heart. Veins are thin-walled and contain valves that prevent the backflow of blood. All veins except the pulmonary vein (which returns to the heart from the lungs) carry blood having low levels of oxygen. ...
Veins are blood vessels that carry blood toward the heart. In the human body, veins serve several important functions: Return of blood to the heart. Veins transport deoxygenated blood from the tissues back to the heart, which can be oxygenated and re-circulated through the body. Regulation of ...
Which statement best describes arteries? All carry oxygenated blood to the heart. All carry blood away from the heart. All carry blood toward the heart. Only large arteries are lined with endothelium. Only the pulmonary artery carries oxygenated bloo ...
1.Any of the blood vessels that carry blood toward the heart. Veins are thin-walled and contain valves that prevent the backflow of blood. All veins except the pulmonary vein (which returns to the heart from the lungs) carry blood having low levels of oxygen. ...
What are the function of valves in veins? The one-way valves in deep veinsprevent blood from flowing backward, and the muscles surrounding the deep veins compress them, helping force the blood toward the heart, just as squeezing a toothpaste tube ejects toothpaste. ...
A blood vessel carrying blood toward the heart; all the veins except the pulmonary carry dark or deoxygenated blood. Synonym(s):vena[TA] . [L.vena] Medical Dictionary for the Health Professions and Nursing © Farlex 2012 vein (in higher animals) that part of theBLOOD CIRCULATORY SYSTEMcarry...
A. Veins. B. Capillaries. C. Arteries. D. Lymphatic vessels. 相关知识点: 试题来源: 解析 C。解析:“Arteries carry oxygen-rich blood away from the heart to different parts of the body.”,动脉将富含氧气的血液从心脏输送到身体的各个部位。反馈 收藏 ...
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. ...
: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 ...