Skeletalmuscle characteristics ofmuscletissue
Location Attached to bones 3 cover it 3 to skin Excitability s responsiveness istheabilityof a celltoreciv
Function s responsiblefor allbodymovement 3 respondtostimulus
cellshape s verylongcylindrical contractility s theabilityto shortenforcibly
Nucleus Multinucleated Extens
control s voluntaryis subjected to consciouscontrol Elasticity s theabilityof a muscle cell to recoil 3
striations obviousstriations im ii.IT iiitimm
resume its resting length afterstretching
Rhythmic iontractions tractsrapidly'tiviseasib than
cardiacmuscle Exitability be iause it receives 3 responds
Location s forms wall of theheartonly
Function s pumpblood producemovement
cellshape Branchingchainofcell interclateddiscs maintainposture 3 bodyposition
Nucleus s uninucleated stabilizingJoint
control s involuntary has no consionscontrol generateheat cytoplasm sarcoplasm
smoothendoplasmicreticulum plasmamembrane
saroptimism sarcolemal
Rhythmic contractions contractslow 3 notfatigue store'scast
smoothmuscles mes
mostlyinwalls of hollow organs
gg.gg
Location s myoglobin granulesofstore
Function s forcesfluids 3 othersubstances through storesoxygen
Muscle fiber
internalbodychannels formsvaluestoregulate the
passage ofsubstancethroughthebody dilate 3 constrict musclefiber
endomysiumsbundle musclefibers Fasicle
of
thepupilsoftheeyes formstheareatorpillimuscle skeletal epimysium musclegroupoffacides c Perimysium
muscle
cellshape s long3fusion
Nucleus s uninucleated a bundleofmusclefibers thenforms a facial whichare cover
control s involuntary has no consionscontrol bypermysiumlastly a groupoffacicksform amuscle 3
striations theyare coveredby epimysiumwhichthenfinallyforms a
Rhythmic contractions contractsslowly 3 sustained skeletalmuscle
, Epimysi um is an overcoat of dense irregular
ionne time tissue that surroundsthe whole muscle glycosomes s granulesofstoredglycogen
perimysium s a layerof dense connective tissue Myoglobin s a redpigmentthatstoresoxygen
thatsurrounds the fasicles Dark A band has a lighterregion in itmidsectioncalledtheH zon
Endomysium s a sheath of connective tissue that
mm sarcomereismadeupof 1 Dark A band 32half I bands
of areolar connective tissue thickfilament s composed ofprimarytheproteinmyosinthatconsis
attachmentofmuscle of 6polypeptidechaintwoheavy 3 4light
tendonropeliketoughcollagenfibers connectthe musch each 2 heavychainsform a globularheadwhichthenattaches
mmmm to themyosinbindingsiteforming a crossbridge
aponeurosis sheetlike connectsthemusch tothebone Myosin cansplittheAtp
indirectly or connects muscle to muscle thinfilament
insertion spointofattachedmuschto movablebone twostrandsofsubunitstwistedinto ahelixwith a regulatoryproteins
orgin pointofattachedmuscleto an immovablebone d
Myofibril rodlike occupymostofthemusclecellvolume bindingsite whichmyosinheadsattachduring contractions
composedof sarcomere arranged endtoend tropomyosin inarelaxedmusclefiberitblocksmyosinbindingsitessothe
Sarcomere myosinheads onthickfilamentscannotbindtothe
thinfilament
troponin 3polypeptidesubunits 1subunitattachesthetroponinwiththeacti
a tinycontractileunit in
iii
distancebetweentwo z line lastsubunitbindsthecalciumions
titin extendsfromthe zdisctothethickfilament itholdsthethick
imiii
a romandoffoffstff andoffatastft
T
microsoft.rs moffffasamiritmm
attachesthem time toting.am
Fy mm muscular dystrophy
ofthsarcolema
inheritedmuscledestroyingdiseases
n
ÉFIjj.fi
thatusuallyappear in childhood
Iband
s.fgymii
thickmyosinfilament
aband
thinmyosinfilaments
Iband
DuchennemuscularDystrophy DMD s iheritedsexlinkeddisease
mostlyinmats 237years clumsycausestulitalmuschisweak
Location Attached to bones 3 cover it 3 to skin Excitability s responsiveness istheabilityof a celltoreciv
Function s responsiblefor allbodymovement 3 respondtostimulus
cellshape s verylongcylindrical contractility s theabilityto shortenforcibly
Nucleus Multinucleated Extens
control s voluntaryis subjected to consciouscontrol Elasticity s theabilityof a muscle cell to recoil 3
striations obviousstriations im ii.IT iiitimm
resume its resting length afterstretching
Rhythmic iontractions tractsrapidly'tiviseasib than
cardiacmuscle Exitability be iause it receives 3 responds
Location s forms wall of theheartonly
Function s pumpblood producemovement
cellshape Branchingchainofcell interclateddiscs maintainposture 3 bodyposition
Nucleus s uninucleated stabilizingJoint
control s involuntary has no consionscontrol generateheat cytoplasm sarcoplasm
smoothendoplasmicreticulum plasmamembrane
saroptimism sarcolemal
Rhythmic contractions contractslow 3 notfatigue store'scast
smoothmuscles mes
mostlyinwalls of hollow organs
gg.gg
Location s myoglobin granulesofstore
Function s forcesfluids 3 othersubstances through storesoxygen
Muscle fiber
internalbodychannels formsvaluestoregulate the
passage ofsubstancethroughthebody dilate 3 constrict musclefiber
endomysiumsbundle musclefibers Fasicle
of
thepupilsoftheeyes formstheareatorpillimuscle skeletal epimysium musclegroupoffacides c Perimysium
muscle
cellshape s long3fusion
Nucleus s uninucleated a bundleofmusclefibers thenforms a facial whichare cover
control s involuntary has no consionscontrol bypermysiumlastly a groupoffacicksform amuscle 3
striations theyare coveredby epimysiumwhichthenfinallyforms a
Rhythmic contractions contractsslowly 3 sustained skeletalmuscle
, Epimysi um is an overcoat of dense irregular
ionne time tissue that surroundsthe whole muscle glycosomes s granulesofstoredglycogen
perimysium s a layerof dense connective tissue Myoglobin s a redpigmentthatstoresoxygen
thatsurrounds the fasicles Dark A band has a lighterregion in itmidsectioncalledtheH zon
Endomysium s a sheath of connective tissue that
mm sarcomereismadeupof 1 Dark A band 32half I bands
of areolar connective tissue thickfilament s composed ofprimarytheproteinmyosinthatconsis
attachmentofmuscle of 6polypeptidechaintwoheavy 3 4light
tendonropeliketoughcollagenfibers connectthe musch each 2 heavychainsform a globularheadwhichthenattaches
mmmm to themyosinbindingsiteforming a crossbridge
aponeurosis sheetlike connectsthemusch tothebone Myosin cansplittheAtp
indirectly or connects muscle to muscle thinfilament
insertion spointofattachedmuschto movablebone twostrandsofsubunitstwistedinto ahelixwith a regulatoryproteins
orgin pointofattachedmuscleto an immovablebone d
Myofibril rodlike occupymostofthemusclecellvolume bindingsite whichmyosinheadsattachduring contractions
composedof sarcomere arranged endtoend tropomyosin inarelaxedmusclefiberitblocksmyosinbindingsitessothe
Sarcomere myosinheads onthickfilamentscannotbindtothe
thinfilament
troponin 3polypeptidesubunits 1subunitattachesthetroponinwiththeacti
a tinycontractileunit in
iii
distancebetweentwo z line lastsubunitbindsthecalciumions
titin extendsfromthe zdisctothethickfilament itholdsthethick
imiii
a romandoffoffstff andoffatastft
T
microsoft.rs moffffasamiritmm
attachesthem time toting.am
Fy mm muscular dystrophy
ofthsarcolema
inheritedmuscledestroyingdiseases
n
ÉFIjj.fi
thatusuallyappear in childhood
Iband
s.fgymii
thickmyosinfilament
aband
thinmyosinfilaments
Iband
DuchennemuscularDystrophy DMD s iheritedsexlinkeddisease
mostlyinmats 237years clumsycausestulitalmuschisweak
