Twitch, Summation and Tetanus in Skeletal Muscle Contraction || Physiology with Animation 

📝 All topics from Muscle Physiology: www.nonstopneuron.com/post/ph...
🌐 Explore our entire animation video library: www.nonstopneuron.com/
● Follow me at:
• Instagram: / nonstopneuron
• Facebook: / nonstopneuron
Twitch, Summation and Tetanus in Skeletal Muscle Contraction:
Twitch is a contraction of a single muscle fiber by a single stimulus. It is the smallest unit of muscle contraction. Frequency summation is adding up multiple twitches of same muscle fibers by stimulating it at higher frequency. In frequency summation, tetanus is seen when individual twitches fuses tougher and they are not distinguishable from one another. Multiple fiber summation is stimulating multiple fibers simultaneously. At weak stimulus, smaller motor units are activated, and with increasing strength of stimulus, large motor units are recruited. And different motor units are activated asynchronously.
Chapters:
00:00 Intro
00:08 Twitch Contraction
00:23 Summation
00:53 Frequency Summation
02:06 Multiple Fiber Summation
04:53 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.