How does the heart pump blood? What is the path of blood through the heart?
I keep confusing the four chambers and valves in NEET biology. I need to trace the complete path of deoxygenated blood from body to lungs and oxygenated blood from lungs back to body.
1 Answer
Complete blood path: Deoxygenated blood from body → Superior/Inferior Vena Cava → RIGHT ATRIUM → Tricuspid valve → RIGHT VENTRICLE → Pulmonary valve → Pulmonary artery → LUNGS (picks up oxygen) → Pulmonary vein → LEFT ATRIUM → Bicuspid (Mitral) valve → LEFT VENTRICLE → Aortic valve → AORTA → Body. Memory tips: Right side = deoxygenated (de-Right). Left side = oxygenated (Left = Luxurious with O2). Valves between atria and ventricles: Tricuspid (right), Bicuspid/Mitral (left). Pulmonary artery carries deoxygenated blood (unusual — arteries usually carry oxygenated blood, but not here).
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