Tag Archives: deoxygenated

Which veins do not carry deoxygenated blood?

[ad_1] Veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.the pulmonary veins carry oxygenated blood […]

Why does the heart separate the oxygenated and deoxygenated blood?

[ad_1] Ans. It is necessary in mammals and birds to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.It is necessary that the oxygenated and Deoxygenated blood is separated so that the body does not generate excessive heat due to excessive production of […]