so there are veins that connect the lungs and the heart and blood vessels carry blood form any direction in and out of the pumping heart
Veins and Arteries move the blood throughout your body which are part of the Respiratory System with the help of the heart pumping the blood.
Veins move blood back to the heart. Think of the "V" as part of an arrow and the arrow is shooting the blood BACK to the heart.
The heart is not a storage device. IF you're refering to the time between beats, then all 4 chambers sort of "stores" blood to be pumped out at the next beat.
every body part you have sends blood to your heart
left part of heart
The ARTERIES carries the blood away from the heart.
veins, but technically, they are not part of the heart.
left part of heart
Right atrium
the heart pumps around your blood
Pulmonary Arteries
The left atrium receives blood returning to the heart from the lungs.