@anatomycoloringbook: 🫀 Blood flows through two connected circuits: the right side of the heart pumps blood to the lungs, and the left side pumps it to the body. Follow the pathway: body → venae cavae → right atrium → tricuspid valve → right ventricle → pulmonary valve → pulmonary arteries → lungs. 🫁 In the lungs, blood releases carbon dioxide and picks up oxygen. It returns through the pulmonary veins → left atrium → mitral valve → left ventricle → aortic valve → aorta → body. Test-day rule: arteries carry blood AWAY from the heart; veins carry blood TOWARD it. Pulmonary arteries carry oxygen-poor blood, while pulmonary veins carry oxygen-rich blood. Valves prevent backflow. #AnatomyAndPhysiology #BloodFlow #HeartAnatomy #NursingStudent #StudyTips

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Tuesday 03 November 2026 04:09:51 GMT