Respiratory Volumes & Capacities | Breathing and Exchange of Gases | Class 11 Biology | NEET UG

Welcome to ‪@BIOLOGYKINGDOMYT‬ – India’s Fastest Growing E-Learning Platform for NEET UG, CUET UG, and Boards! In this detailed video lecture, we bring you an in-depth explanation of "Respiratory Volumes and Respiratory Capacities" – a key topic from Class 11 NCERT Biology, Chapter: Breathing and Exchange of Gases. This topic is frequently asked in NEET, appears in CUET UG Biology, and holds high weightage in Class 11 CBSE/State board exams. If you're a medical aspirant or aiming for top scores, this video will give you the conceptual foundation and exam-edge you need! 🔍 What You’ll Learn in This Video: 🫁 Respiratory Volumes: These are the basic measurable units of air volume involved in the respiratory cycle. Tidal Volume (TV): Definition: The volume of air inspired or expired during normal breathing. Normal Value: ~500 mL Clinical importance in normal and abnormal respiration Inspiratory Reserve Volume (IRV): Definition: Additional air that can be inhaled after normal inspiration Normal Value: ~2500–3000 mL Expiratory Reserve Volume (ERV): Definition: Extra air that can be exhaled forcefully after normal expiration Normal Value: ~1000–1100 mL Residual Volume (RV): Definition: Air remaining in lungs even after maximal expiration Importance in preventing lung collapse Normal Value: ~1100–1200 mL 🫀 Respiratory Capacities: Capacities are combinations of two or more volumes and reflect lung function more holistically. Inspiratory Capacity (IC) = TV + IRV Total volume of air a person can inhale after a normal expiration Expiratory Capacity (EC) = TV + ERV Total volume of air a person can exhale after a normal inspiration Functional Residual Capacity (FRC) = ERV + RV Volume of air remaining in lungs after normal expiration Vital Capacity (VC) = TV + IRV + ERV Maximum volume of air that can be exhaled after a deep inspiration Indicator of lung health and endurance Total Lung Capacity (TLC) = TV + IRV + ERV + RV Maximum air the lungs can hold Varies with age, gender, and health conditions 🎯 Why This Video is a Must-Watch: ✅ NEET-Focused Explanation: Fully aligned with NEET UG 2025 syllabus and NCERT textbook – perfect for competitive preparation. ✅ CUET UG Ready: Concept clarity with examples tailored to CUET UG pattern questions. ✅ Board Exam Friendly: Ideal for Class 11 students aiming for 90+ marks in Biology. ✅ Concept + Application: We not only explain theory but also show you how to apply it in solving NEET MCQs, Assertion & Reason, and Diagram-based questions. ✅ Includes: Graphical representation of lung volumes Clinical applications (COPD, asthma, lung fibrosis) Mnemonics and memory tricks Real-time value charts Quick revision table at the end of the session 🎓 Who Should Watch This Video? 🔹 NEET UG 2026 & 2027 Aspirants 🔹 CUET UG Biology 2026 Students 🔹 Class 11 CBSE, ISC & State Board Biology Students 🔹 Droppers preparing for NEET UG 🔹 Biology Olympiad and NTSE Aspirants 🧬 About Biology Kingdom: Biology Kingdom is India’s fastest-growing e-learning platform, empowering lakhs of students with high-quality, exam-focused biology content. Our mission is to make Biology crystal clear, conceptually strong, and easy to retain for every aspirant. We specialize in: NEET UG (Full Syllabus) CUET UG Courses NCERT-based Board Exam Preparation Chapter-wise Test Series & PYQs Smart Notes, Revision Mind Maps & Daily Practice Question 📥 Don't Forget To: 👍 Like the video if you found it helpful 🗨️ Comment your doubts or suggestions below 🔁 Share with friends preparing for NEET or CUET🔔 Don’t forget to LIKE, SHARE, and SUBSCRIBE to Biology Kingdom for regular updates, concept-based learning, and smart strategies to boost your biology preparation. 📌 Stay connected and stay ahead in your preparation with us! Whatsapp: https://api.whatsapp.com/send/?phone=... Instagram:   / biologykingdom.ac   Telegram: https://t.me/biologykingdom App: https://play.google.com/store/apps/de... #biologykingdom #neet2026 #cuetug2026 #boardexams #ncertbiology #class11biology #biology #neetbiology #cuetbiology #biologylectures #respiratoryvolumesandcapacities #tidalvolume #irv #erv #frc #tlc #respiratorysystem #breathingandexchangeofgases #humanphysiology #biologykingdom #elearning #neetug #doctor #mbbs #bvscah #bams #bds #bhms #gmc #aiims #ivr #ndri #iari #dryogeshjindal