From Where the ATPs Come & Where are they Used During Contraction | Energetics of Muscle Contraction

📝 All topics from Muscle Physiology: https://www.nonstopneuron.com/post/ph... 🌐 Explore our entire animation video library: https://www.nonstopneuron.com/ ● Follow me at: • Instagram:   / nonstopneuron   • Facebook:   / nonstopneuron   Energetics of Muscle Contraction: The immediate source of energy for muscle contraction is ATPs already available in the cell. It lasts for 1 to 2 seconds only. The first source for ATP generation is phosphocreatine which lasts for additional 4 to 6 seconds. Second source is glycolysis of glycogen, and it lasts for upto a minute. Third and final source of ATPs is oxidative metabolism of carbohydrates, fats or proteins. It lasts for long term. The ATPs are consumed mainly in mechanical work of pulling actin over myosin. And small quantity is used to transport calcium into sarcoplasmic reticulum, and to transport sodium and potassium across the cell membrane. Chapters: 00:00 Intro 00:21 Expenditure of ATPs 00:56 Sources of ATPs 01:25 Phosphocreatine 01:49 "Glycolysis" of Glycogen 02:41 Oxidative Metabolism 03:12 Summary Dr Vipul Navadiya DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.