up and down depends on the direction of the heart
arteries and veins
through arteries
Inside of your veins and arteries.
Veins and arteries are the passageways blood uses to travel throughout the body.
Blood cells travel to and from the pump called the heart by way of the blood vessels called the arteries and veins.
arteries, veins
After the coronary arteries travel around the heart, they go to the lungs for oxygenation.
they both travel in viens and arteries
Yes, but it will be a little darker inside the veins.
Yes. Arteries and Veins.
Inside the veins and arteries
Veins. Remember it this way, 'a' for away and 'a' for arteries. If arteries take blood away from the heart, then veins must take it to the heart.