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Cardiac Cycle Explained

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Apr 20, 2026
47:30

How the heart beats is explained through the cardiac cycle, a sequence of electrical, mechanical, pressure, and volume changes that occur in every heartbeat โšก๐Ÿ“ˆ. In this video, you will learn the cardiac cycle step-by-step, including ECG activity, mechanical contraction, pressure changes in atria, ventricles, and aorta, and volume changes in heart chambers. We also explain heart sounds and the venous pulse graph, making this a complete and easy guide for understanding heart functionโค๏ธ. This lecture is perfect for MBBS, USMLE, nursing, and medical students studying cardiac physiology, ECG interpretation, and cardiovascular mechanisms ๐Ÿซ€. ๐ŸŽฏ Learning Objectives: 1. Definition and duration of cardiac cycle ๐Ÿซ€โฑ๏ธ 2. Electrical activity during cardiac cycle โšก๐Ÿ“ˆ 3. Mechanical activity during cardiac cycle ๐Ÿ”„๐Ÿซ€ 4. Pressure changes during cardiac cycle ๐Ÿ“Šโค๏ธ 5. Volume changes during cardiac cycle ๐Ÿ“‰๐Ÿซ€ 6. Heart sounds ๐Ÿ”Šโค๏ธ 7. Venous pulse graph ๐Ÿ“ˆ๐Ÿฉธ ๐Ÿ”” Donโ€™t forget to subscribe for more cardiovascular physiology lectures, medical study guides, and high-yield concepts! ๐Ÿ“š Earn CME Credits If youโ€™d like to earn CME credits for this course, visit: ๐Ÿ‘‰ https://members.drbeen.com/courses/cardiovascular/Skg2PHvzDX ๐ŸŒ Explore More from DrBeen ๐Ÿ”— Website: https://members.drbeen.com/courses ๐Ÿ“˜ Facebook: https://www.facebook.com/drmobeensyed ๐Ÿ“ธ Instagram: https://www.instagram.com/drbeen_medical โ–ถ๏ธ Additional Content: https://www.youtube.com/@DrBeenMedicalLectures ๐Ÿ™Œ Thank you for choosing DrBeen Medical Lectures as your trusted source for advancing medical knowledge. Together, letโ€™s continue building a community dedicated to lifelong learning and excellence in healthcare. ๐Ÿ’™ ๐Ÿ›‘ Medical Disclaimer: This video is not intended to provide assessment, diagnosis, treatment, or medical advice; it also does not constitute provision of healthcare services. The content provided in this video is for informational and educational purposes only. Please consult with a physician or healthcare professional regarding any medical or mental health-related diagnosis or treatment. No information in this video should ever be considered as a substitute for advice from a healthcare professional. #CardiacCycle #HeartCycle #HowHeartBeats #CardiacPhysiology #ECG #HeartSounds #CardiacOutput #Cardiology #HeartFunction #Physiology #MedicalEducation #USMLE #MedStudent #DrBeen

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Cardiac Cycle Explained | NatokHD