It moves away from the heart
It is oxygen rich. Apex
Because the blood flowing through them is at a much higher pressure, therefore they need to be thicker to withstand more pressure.
It means you can feel the pulses of blood flowing through your main artery in the uterus (uterine artery) just by touching the area where the uterine artery passes through.
semilunar
the blood flowing in a vein is under a lot less pressure than in an artery, generally veins carry blood back towards the heart from the various parts of your body whereas arteries are the main outlet distributers from the heart itself.
You are feeling the force of blood flowing through an artery, as the artery itself passes over a bony prominence, such as the wrist bone.
It moves away from the heart
There will be no systolic sound if blood is flowing freely. This occurs when there is no measurable constriction of an artery.
All valves in the cardiovascular system are to stop blood flowing backwards through the system. The pulmonary vavle stops blood flowing back from the pulmonary artery into the right ventricle.
The pulmonary valve is the tricuspid valve between the right ventricle and the pulmonary artery. It prevents blood from flowing down the artery back into the right ventricle.
The disappearance of sound is caused by blood flowing freely. The blood flows freely because there is no constricted artery.
A capilliary is a minute blood vessel - a valve is something found usually in a vein or artery - which stops blood flowing 'backwards'