there are no 'tubes' as such in your heart; they are called chambers.
the two chambers at the top are called atria and the two at the bottom are called ventricles.
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artery
Arteries
Contractions and relaxation of heart chambers make the blood flow inside the tubes or blood vessel.
Veins carry blood to the heart. Arteries carry blood away from the heart.
Veins are the tubes that carry blood to the heart. In contrast, arteries carry blood away from the heart.
Yes, the heart pumps blood into arteries. Arteries carry blood away from the heart.
Contractions and relaxation of heart chambers make the blood flow inside the tubes or blood vessel.
Tubes connected to the heart are called arteries and veins.
Most veins are thinner walled tubes than arteries, and basically transport blood towards the heart.
The circulatory system includes the heart and all of the tubes connected to it. These tubes are collectively known as blood vessels.
at the end of the fallopian tubes, you have the fimbriae. They actively pull the ovum inside the fallopian tubes. Inside the fallopian tubes you have the cilia to to push the ovum towards the uterus.
There are two tubes that take blood out of the heart. These are the pulmonary artery and the aorta.