Blood is transported throughout the body through both arteries and veins, but a significant difference between the two is the pr
esence of valves in veins. Some people develop chronic venous disease (CVD), which initially causes higher venous blood pressure and vein dilation, resulting in weakened vein valves. What do you predict would happen as the valve damage progresses?
The blood would get leak backwards via the damaged valves because of gravity, resulting in swelling.
Explanation:
The heart of a human being comprises four chambers, that is, the two ventricles and two atria. The valves assist in the unidirectional flow of blood towards the lower chambers from the upper chambers, the main function of the valves is to prevent the backflow of blood. Thus, on the basis of the question, it is evident that if the valves get destructed, then leaking of the blood takes place, that is, the blood may leak in the backward direction usually because of gravity, leading to swelling of the body part due to the accumulation of the blood.
There numerous of them but some of them would be contaminated soil which can be followed with altered soil chemistry that contains fewer soil organisms that are essential. The third one would be surface runoff due to extensively modified hydrology of the area.
If the comet were to strike the planet, the impact energy would be about 300 times that of the asteroid collision that was thought to have caused the Cretaceous-Tertiary extinction that killed the dinosaurs about 65 million years ago.
