It is valves, muscles contracting, and breathing.
contraction of muscle, larger veins in your body, breathing movements
Muscle contractionone way valvesbreathing movements
arteries, veins
the three pathways through wich blood flows are the arteries,veins,and capillaries
two things that are next to the heart are veins and blood because veins are coming out of the heart and blood goes through the heart
the three main tubes that blood can pass through in the circulatory system are the arteries, veins, and capillaries.
the three blood vessels are the Veins capillaries Arteries the arteries.
arteries and veins
what veins does it pass through
Irish blood runs through these veins
The blood in veins is at a lower pressure than it is in the arteries. The lower pressure makes for challenges getting that blood back to the heart. As there is less force (pressure) in the veins, blood would pool in the lower parts of the body if there were not mechanisms to prevent that. There are three different things that help blood get back to the heart. The three mechanisms are: venous valves, muscular pumps, and the respiratory pump.
Arteries, veins, & capillaries are the three main veins while drawing blood in arm