The heart has a right pump and a left pump. Blood from the body returns to the right side, which sends it to the lungs. Blood returns from the lungs to the left side, which sends it around the body. Arteries carry blood away from the heart; veins bring it back. Follow the gold marker. The right side sends blood to the lungs; the left side sends it to the body.
The human body · Discover & try
Where does blood travel next?
Reading level 2 of 5 · DevelopingChange
Word help
Artery
A vessel carrying blood away from the heart.
Vein
A vessel returning blood to the heart.
Valve
A structure that helps prevent backward flow.
Watch · Try · Explain
See how it works
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Flat route diagram, not an anatomical view. Colours label oxygen level; all blood is red. Playback follows one representative packet, not a real heartbeat.
What to look for
- Body → right atrium → right ventricle → lungs → left atrium → left ventricle → body.
- This is where blood picks up oxygen before returning to the left side.
- The left ventricle sends blood toward the body tissues.
Explain what you noticed
A vessel carries blood from the heart toward a kidney. Which name fits its direction?
Keep this idea: Direction defines an artery or a vein; the two heart–lung–body loops work together.
Follow the sources
Source material checked 2026-10-29. Explanations and activities by Nepedia. Source links do not imply endorsement.
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