Yes, the pressure is greatest closer to the heart.
no, it represents the pressure exeted on the arteries
Veins don't carry blood at high pressure arteries carry blood at high pressure. Arteries have a thick, elastic muscle layer that can handle high pressure of the blood flowing through them.
The heart propels blood to the tissues through the contraction of its muscular walls. This contraction generates pressure, which pushes blood out of the heart and into the arteries. The arteries then carry the oxygenated blood to the tissues.
Blood in arteries moves because of pressure of blood from the heart. Each time the heart pumps, it pushes the blood a little further. Veins do not rely on the heart to move blood. Veins have a system of valves to keep the blood from not moving backwards, and muscles contract the veins to move the blood.
Yes, the heart is what squeezes or pushes blood through the arteries.
Voltage is the pressure that pushes electricity through wires (or other conductors) in the same way that water pressure pushes water through pipes.
the heart beats and the air pushes the blood
The blood is able to move to and from the heart through the contraction of the heart muscle. These contractions build up pressure and cause you to have what is commonly known as blood pressure. That build up of pressure pushes the blood throughout the arteries and veins and enables it to circulate throughout the body.
The heart pushes blood to your body through the arteries. The blood returns through the veins. The large, flexible artery into which the heart pumps is the aorta.
Yes. Each beat of the heart pushes blood through the arteries. This can be felt as the pulse.
Pressure must move from one area to another, otherwise no flow will occur. In the case of the human heart, pressure pushes blood from the aorta, through arteries, arterioles, capillaries, venuoles, and finally veins, to the vena cavae, where the blood goes back into the heart to be re-oxygenated.
The strong contractions of the right and left ventricles push the blood up through the semi lunar valves.