Heart pumps O2 rich blood to body through artries.
Veins.
You're confused. The heart pumps. The veins drain.
arteries
The heart pumps it. When your heart beats it squeezes blood in the heart into the arteries and from the arteries to the veins and from the veins back into the heart.
The atria
The pressure your heart creates by pulsing, pumps blood through the veins
Veins ^ wow, no. not at all. The heart pumps the blood to the entire body. If you mean carry , then it would be the circulatory system.
your heart pumps blood around the body via arteries, capillaries and veins.
The heart is the organ that receives blood from the veins and pumps it into the arteries.
It pumps blood into the veins of the animal
it pumps the blood through your veins and arteries
If I get what you are asking, the heart pumps blood through the arteries, which are under pressure. The veins have little pressure of their own. Arteries don't but veins do. that's bcz when blood reaches veins its pressure has considerably decreased and veins r not pulsatile thus to continue the flow to heart it is pushed towards heart with the help of presure caysed by compressing the veins during muscle contracttion and raised presuure during inspiration.