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severe face & arm muscle spasms (nueromuscular junction (2…
severe face & arm muscle spasms
dirty needle
systems
nervous
skeletal
muscular
integumentary
nueromuscular junction
2.acetylcholine exocytosis into the the synaptic cleft
3.ACH attaches to ligand gates, which opens them
4.allowing sodium to flow through
5.an "zap" then open another voltage gate channel
6.sodium continues to enter, while small amount of potassium exits
7.sodium contiunes through the T Tuble. opening the calcium gate in the sarcoplasmic reticulum
8,calcium attaches to tropomyosin
1.an action potential allows calcium to go through a voltage gate into synaptic knob
9.troponin moves
10.atp binds to myosin then breaks down to adp, which releases myson to attach to actin
acetylcholine= nuerotransmitter
twitch: one muscle fiber contracts with relaxation
summation: multiple muscle fibers contracts, increasing tension until relaxation
tetani: prolonged contraction without relaxation
clostridium tetani
toxins=tetanolysin & tetanolysin
1.blocks ACH from opening ligan channel
goes up through the spinal cord, into the brain
ACH unable to open ligand channels
respiratory problems
infection
cardiovascular problems
sever muscle spasms
effects nervous system