Sectional view of the human heartमानव हृदय का काट दृश्य

NCERT Fig 5.10 · interactive diagram

Parts and their functions

• Right atrium (दायाँ अलिंद) — Receives deoxygenated blood from the body through the vena cava.
• Right ventricle (दायाँ निलय) — Pumps deoxygenated blood to the lungs through the pulmonary artery.
• Left atrium (बायाँ अलिंद) — Receives oxygen-rich blood from the lungs through the pulmonary veins.
• Left ventricle (बायाँ निलय) — Thickest muscular wall — pumps oxygenated blood to the whole body through the aorta.
• Aorta (महाधमनी) — Largest artery: carries oxygenated blood from the left ventricle to the body.
• Pulmonary artery (फुफ्फुस धमनी) — Carries deoxygenated blood from the right ventricle to the lungs (an artery with deoxygenated blood!).
• Pulmonary veins (फुफ्फुस शिराएँ) — Bring oxygenated blood from the lungs to the left atrium.
• Vena cava (महाशिरा) — Large veins bringing deoxygenated blood from the body to the right atrium.
• Valves (वाल्व) — Ensure blood does not flow backwards when atria or ventricles contract.
• Septum (पट) — Wall separating the right and left sides, so oxygenated and deoxygenated blood do not mix.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 5.10. Report a mistake