Incomplete and Complete tetanus | Amphibian graphs | Practical Physiology mbbs 1st year

Practical Physiology 1st year mbbs lecture on incomplete and complete tetanus
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[@PhysiologyOpen]

When we need to generate more force, repetitive stimulation of same motor unit occurs. This causes tetanus and hence more force generation. What are the other ways which body uses to increase the force generation ?
Watch this video may be you will get an idea :
ua-cam.com/video/HfCfE2NNvFg/v-deo.html

[@drevenezeliezko3115]

nice explanation, it is worth mentioning that , AC voltage/current in many countries operates at 50Hz which would cause complete tetanus of the flexors at thus "cant let go phenomenon" ..

[@PhysiologyOpen]

For stimulation, DC voltage is used

[@user-qr6dt5qs6g]

Amazing explanation! Thank you

[@PhysiologyOpen]

Thanks 😊❤️

[@tomcruise9317]

How long tetenus last is there end if we keep on stimulating

[@PhysiologyOpen]

It will fatigue after some time

[@tomcruise9317]

@@PhysiologyOpen if 50hz give and we see tetanus for 20min now i give 100hz will it last for 40min or same 20min

[@tomcruise9317]

@@PhysiologyOpen also mam two z disk come close to each other they pull the z disk to their center but same way adjusent disk pull the z disk to their center so there will be now muscle fiber shortning ...mam

[@PhysiologyOpen]

But if the length is fixed…this force of pulling is transmitted to tendons and surface rather than actually allowing shortening

[@PhysiologyOpen]

If you give more frequency of stimulation, force generated will be more and fatigue will be faster so it will last less than 20 minutes