What does “Double circulation” actually mean in Body Fluids & Circulation, and why does it matter for NEET?
blood passes through the heart twice in one complete circuit — once to the lungs, once to the body.
In simple words: blood passes through the heart twice in one complete circuit — once to the lungs, once to the body. Getting Double circulation clear matters because NEET questions on Body Fluids & Circulation usually test this idea directly, not just a formula you memorised.
Key point
Double circulation
Common mistake
thinking humans have single circulation like fish.
Memory tip
pulmonary (to lungs) + systemic (to body) = double circulation.
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