6516639012 | The entire length of the thick filament going to be referred to as the | A-band | 0 | |
6516641199 | a proteinasious disc | zline | 1 | |
6516647543 | so the a band of the sarcomere extendst entire lenghth of the | thick filament | 2 | |
6516659736 | part that extends from the ends of the thick filament to the zdics | I band | 3 | |
6516660931 | i band consists all of | thin filament | 4 | |
6516667597 | each sarcomere has | 1 a band 2 i bands 2 z-dics | 5 | |
6516681828 | Right in the center of the sarcomere have something called the | M-Line | 6 | |
6516685401 | Is another proteinnasious disc | M-Line | 7 | |
6516688885 | Is what anchors the thick filament to the center of the sarcomere | M-Line | 8 | |
6516694064 | the z disc and m line both | anchor the thin filaments to the ends of the sarcomere | 9 | |
6516736673 | Extends from the ends of 1 filament over to the begining of the next filament | H-Zone | 10 | |
6516738196 | In H zone only have | thick filaments | 11 | |
6516740102 | i zone only have | thin filaments | 12 | |
6516746395 | theres one other protien in a sarcomere | titin | 13 | |
6516748789 | IT is a really loose molecule | titin | 14 | |
6516750369 | titin constists of 30 thousand | amino acids | 15 | |
6516752333 | Highlyy strechy like a rubber band | titin | 16 | |
6516757662 | If i overstretch a sarcomere it will | elastically return to its resting length. (titin) | 17 | |
6516761737 | a sarcomere can stretch beyond its | resting legnth and elastically rebound | 18 | |
6516765391 | connective titin extends from | 1 z disc to the next z disc as well | 19 | |
6516775114 | thin filament transects the | zdisc goes in both direction | 20 | |
6516780038 | We can link our sarcomeres toghther | a band i band h zone m line | 21 | |
6516806171 | In a zdisc the thin filament extends | this direciton and that direciton | 22 | |
6516822807 | we have lots of lots of what in a sarcomere | thick filaments | 23 | |
6516834269 | there is a what region that overlap between thick and thin filaments | interactional relationship | 24 | |
6516838877 | Each thick filament is surrounded by how many thin filaments | 6 | 25 | |
6516844249 | again this is a single thickness if you add those up youll notice that there are | 6 thin filaments surrounding that. | 26 | |
6516848111 | Globosin mysoin heads in a sarcoere are radiating out in all diff | direcitions | 27 | |
6516851677 | this globular head on this thick filament will | radiate out in all diff directions. and attatch to all 6 of the thin filaments. | 28 | |
6516860539 | a single thick filament is much more thick then a | thin filament | 29 | |
6516865096 | and this is just 1 single muscle cell im gonna have lots of | myofibrils | 30 | |
6516873317 | proteins themselves arnt shortening rather thin filaments sliding past thick filaments we refer to this as the | slight pull mechanism | 31 | |
6516874686 | as a result of the thin filament pulling on the thin filament youull knotice now its gonna be these | globular myosin heads locking onto this actin | 32 | |
6516889001 | globular myosin heads locking onto actin form the | power and recover strokes to pull these up | 33 | |
6516894312 | sarcomeres are shortening thin filaments are sliding past the thick filaments | slight pull mechanism | 34 | |
6516904850 | slight pull mechanism what shortens | sarcomeres will shorter all sarcomeres in myofibrils will shortern the myoribril shortens when all the myofibrils shorten in a muscle the muscle shortens | 35 | |
6516918116 | What region would you expect to shorten as contraction occurs | both i bands the h zone also | 36 | |
6516941013 | what lay side by side in a relaxed muscle | actin, myosin, and myofilaments | 37 | |
6516944383 | in relaxed muscle what are at max width | h band izone | 38 | |
6516950522 | during contraction the actin and myosin myofilament interact with the | actin slide toward the center of the myosin fliament as a result the sarcomere shortens. | 39 | |
6516954592 | In a fully contracted muscle the ends of the actin myofilaments overlap the | h zone dissapear and the i band becomes very narrow | 40 | |
6516980446 | when muscle relaxes we reomove calsium from the | tropoin c | 41 | |
6516985385 | when myosin heads can no longer bind to active site | muscle returns to resting | 42 | |
6516991932 | muscle contraciton requires what to shorten | atp | 43 | |
6516994040 | muscle contraction | actin process | 44 | |
6516995214 | relaxation | pasive process | 45 | |
6516999552 | doesnt require atp for it to be | linked | 46 | |
6517003234 | relaxation block all of the | myosin heads from being linked to binding site | 47 | |
6517040352 | 1 single muscle cell gonna have lots of | myofibrils in it | 48 | |
6517054954 | the ends of the actin myofilaments overlap in a | fully contracted muscle | 49 |
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