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The blood circulatory system is responsible for the transport of oxygen, nutrients, hormones, and removal of wastes from the body.
🔹 Types of Circulation:
Open circulation → blood flows freely in body cavities (e.g., arthropods).
Closed circulation → blood flows inside vessels (e.g., humans).
🔹 Human Circulatory System:
Double circulation → systemic + pulmonary circulation.
Heart → muscular organ with 4 chambers (2 atria + 2 ventricles).
Right side → pumps deoxygenated blood to lungs.
Left side → pumps oxygenated blood to body.
👉 Blood vessels:
Arteries – carry blood away from heart
Veins – carry blood to heart
Capillaries – exchange of gases & nutrients
#bioscape #biology #cbse12thbiology #ncert #lifescience #ncertbiology #circulatory_system #cbse #cbsebiology #neetbiology #neet #humancirculatorysystem
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Genre: Science & Technology
License: Standard YouTube License
Uploaded At 4 weeks ago ^^
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RYD date created : 2025-09-13T07:53:55.150888Z
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