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Word Count: 497
Diseases matching- -Myopathy-any disease of the muscles -Atrophy-polio decrease in the size of a muscle due to lack of use following loss of motor nerve -Contracture- cramp or charley horse shortening of the fibers of a muscle myotonia-muscle fails to relax -curare-neuromuscular juncion inactivating acetylcholine and thereby preventing the transmission of an impulse from nerve to muscle flaccid limp paralysis results -Eserine blocks the action of cholinesterase and permit acetylcholine to act in an uninhibited manner producing a spastic rigid paralysis -Fibromyostitis-rheumatism -Hypertrophy-inflamation of muscles due to long period of stress -Muscular Dystrophy-children and males cause is unknown 7 major types -Myalgia-muscle pain -Myasthenia gravis- cant keep eyelids open -Paralysis- Flaccid-lack of firmness or toneatonia Spaastic- too much tonehypertonia -Shin Splints-soreness on the front of the tibia -Spasm-tic in eye involuntary muscle contraction -Tetanus- lock jaw -Tetany- caused by alkalosis -Torticollis- spasmodic contraction of the neck muscles -Ulnar nerve Paralysis- bent digits -Winged scapula-affects the lumbar region -palsy-skaing aged skiing Effects of Curare- Chondodendron Tomentosum-south american indians Shuts off acetylcholine which causes muscle contraction so then too much cholinesterase reaches muscle The muscles go limp and the person may suffocate due to the fact that the diaphragm and intercostal muscles will not move -used today as a muscle relaxant during shock treatments -pure nicotine-same effect on muscle Fill in Blanks on A bands I bands - 267 Szent gyorgyi-found that the chief constituents of muscle fibrils are 2 proteins actin and myosin he found that contraction could not occur unless 3 things were present 1actin 2myosin Frog experiment 3ATP Actin and myosin are also found in the cytoskelton of the cell Atp for energy He assumed that actin and myosin were folding Schmitt and Huxley-electron microscope show that contractions certain salt solutions it is possible to extract myosin or actin from myofibrisl When myosin is removed
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