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MESystemic and Pulmonary circulation - The continuous journey of Life through Heart
Deoxygenated blood from the legs, internal organs, arms, and head returns to the heart through two great veins - the Inferior Vena Cava from the lower body and the Superior Vena Cava from the upper body - entering the Right Atrium. It flows into the Right Ventricle, which pushes it through the Pulmonary Artery toward the lungs.
In the lungs, blood releases carbon dioxide and absorbs fresh oxygen. This “recharged” blood now carries life again. It returns to the heart through the Pulmonary Veins, enters the Left Atrium, and moves into the powerful Left Ventricle - the chamber built to serve the entire body.
With a forceful pump, the left ventricle sends this oxygen-rich blood into the Aorta, from where it splits into three great directions: upward to the head and brain, sideways to the arms, and downward to the organs and legs.
In the brain, blood sustains thought, memory, and nerve control. In the arms, it powers movement, grip, and work. In the organs and legs, it fuels digestion, balance, walking, and survival.
At the tiniest vessels - the capillaries - blood delivers oxygen and glucose, collects waste and carbon dioxide, turns dark again, and begins its return to the heart.
This circulation never pauses, because the brain fades within minutes without oxygen, muscles collapse without energy, and organs fail without supply.
The heart is the engine.
Blood is the carrier.
Vessels are the highways of life.
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#BloodFlow #HeartToBody #PulmonaryCirculation #SystemicCirculation
#RightAtrium #LeftVentricle #Aorta #VenaCava
#OxygenCycle #GasExchange #Capillaries
@medico_plasma
