atherosclerosis usually attributed to high cholesterol over years and years
There are valves in the heart - and the larger blood vessels that stop the blood flowing backwards.
There are valves in the blood vessels (like a one-way door) - that stop the blood flowing backwards.
blood vessels
a blood vessels transport blood to all parts of the body
dont fricken know
dont fricken know
dont fricken know
There are two ways that blood is kept flowing in the same direction. The heart is pumping it in that direction, and blood vessels contain valves which prevent blood from flowing in the wrong direction.
Veins have valves which stop the blood from flowing backwards
veins have valves in them that prevent backflow
veins contain valves that prevents blood flowing backwards between heartbeats.There are valves in the veins that stop the blood from flowing backwards.
No ,it is purplish red .