The meaning of VEIN is blood vessel; especially : any of the tubular branching vessels that carry blood from the capillaries toward the heart. How to use vein in a sentence.
Veins carry blood to the heart. After blood has nourished all of the cells in the body, it contains carbon dioxide. Carbon dioxide is a waste product... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
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 ...
Which blood vessels that enter and exit the heart carry oxygenated blood? Which carry deoxygenated blood? What are the only oxygenated veins in the body? What are the main blood vessels that form the systemic, pulmonary, and portal circulation? What are blood vessels that ca...
A blood vessel carrying blood toward the heart; postnatally, all veins except the pulmonary carry dark unoxygenated blood. Synonym(s):vena[TA] [L.vena] Farlex Partner Medical Dictionary © Farlex 2012 vein (vān) n. 1. a.AnatomyAny of the membranous tubes that form a branching system an...
Types of Blood Vessels There are three types of blood vessels: arteries veins capillaries They form an essential part of the circulatory system. Structure and Function of Arteries Arteries carry oxygenated blood from the heart to different parts of the body. The arteries divide into smaller branches...
What Are Veins? Your blood loses oxygen as it travels through your arteries. Veins carry the blood back to your heart to absorb more oxygen. Your veins usually hold about 75% of all the blood flowing through your body. Your largest veins are the superior and inferior vena cava. Yo...
What are the three types of blood vessels? The three major types of blood vessels are arteries, veins, and capillaries. Arteries are the large, muscular vessels that carry oxygenated blood away from the heart into the tissues. Capillaries are tiny blood vessels that are the site of gas and ...
There are three reasons for this. First, the arteries are still located much deeper than the most superficial veins. Second, arteries have much thicker walls and so the light waves cannot interact with the blood. Third, arteries carry oxygenated blood which does not absorb red light as much ...
Most veins contain valves (known as the valvula venosa in the TA) toprevent backflow, i.e. ensuring that blood flow is always towards the heart1. Do All veins have valves? Veins carry the blood back to the heart. They're similar to arteries but not as strong or as thick. Unlike arte...