VALVES
through flaps called valves which carry it into the veins
These are valves, and are found in veins to prevent blood from flowing backwards.
In the human heart, blood exits from the ventricles (left and right).
They are called valves, or leaflet valves in the veins, that interlock to prevent backflow of the blood.
blood vessels that carry blood toward the heart are called veins.
Arteries carry oxygenated blood; veins carry de-oxygenated blood. Arteries have much thicker muscular wall (of muscle and elastic fibres). Arteries have narrow passageway for blood; veins have a wider passageway. Arteries have higher blood pressures. Extra info. if you need it Veins have flaps of valves while arteries do not.
Veins are blood vessels that carry blood from all parts of the body back to the heart.
Cardiac veins carry blood from ? to ?
There are atrioventricular valves on each side of the heart that keep blood from flowing from the ventricles back up into the atria. There are also semilunar valves that prevent blood from flowing from the pulmonary arteries and aorta back into the right and left ventricles, respectively.
To stop the blood travelling the wrong way down the vein. One way system lol.
When travelling from legs to heart, blood travels in veins. These veins have a special structure which is adapted for this type of transport. They have valves or pocket-like flaps which prevents blood from flowing backwards or in other words, falling down.
veins, arteries and capillaries are all called blood vessels or blood streams.