Unlock the secrets of Body Fluids and Circulation in this clear and engaging biology explanation! 🩸✨ In this video, we break down everything you need to know about blood, lymph, blood groups, the human heart, cardiac cycle, ECG, and double circulation in the simplest way possible. Perfect for Class 11 Biology, NEET aspirants, and anyone who wants to understand how our circulatory system keeps us alive. 👉 What you will learn: ✔ Components of blood – Plasma, RBCs, WBCs & Platelets ✔ ABO & Rh blood group systems ✔ Structure of the human heart ✔ Cardiac cycle (systole & diastole explained) ✔ ECG waves – P wave, QRS complex, T wave ✔ Pulmonary & systemic circulation ✔ Common heart disorders – hypertension, CAD, angina, heart failure Whether you're revising for exams or learning it for the first time, this video will help you score high and understand concepts deeply. Don’t forget to like, share, and subscribe for more Class 11 & 12 Biology content! 🌿📚