Muscle tissues
CH Skeletal
Cardiac
10 smooth
Contratility muscle shortens
with force
Excitability musclerespond to
stimulus nerves
Extensibility musclestretchedbeyond
normallength andstill be
Functions of Skeletal musle able to contract
Producing movement Elacticity muscle to recoil to orig
Maintaingbodyposture bodyposition restinglength afterstretched
Guardingbody entrances exits
Maintaingbodytemp
Storing nutrients
Over 700 Skeletal muscles
Somepeople are missing PalmansLongus
16 of people missing mostly whitefemales
MU
CleAHEYMMLmmn
mostmuscles extend over a joint andhave
attachments to botharticulatingbones of thatjoint
upon contraction of the muscle one of the articulating
bones move and theotherone does not
The lessmoveable point of attachment is the Origin
The more moveablepoint of attachmentisthe insertion
Relaxation Contraction
musclebelly musclebelly
Lengthelongated Length Shortened
Width decreased width increased
, Epimysium muscle
Perimysium Fasicle
Endomysiummusclefiber
Sacroplasm the cytoplasm of muscle cells
MY 5EMs mtiioPeveijuMaMebs'ofEpe aiiÉeafroteinscalledmyofilament
sacroplasmtc.li etctiiuituimS'rtghaiiiietrait soatmmfaifit.desmooth ER
that forms weblike network surrounding
eachmicrofibril
myofilaments thousands of proteinbundles Consists of one
or moretypes ofProteins Contractile Regulatory Structural
contractileProtein Produce
tensile
Regulatory Protein control when I muscle fiber can contract
StructuralProtein Holdthe myofilaments in their properplaces ensure
the structuralstability of the myofibril muscle fiber
Thickfilaments Largest diameter Composed of many units of the
contractileProtein myosin Myosin lookslike 2 golfclub
twistedtogether arrangedinside thick filament
Thinfilament made of contractile regulatory structuralProteins
Actin thinfilamentconsistsofmany subunits of the contractileProtein actin
BeadShapedproteinhas an active site thatcanbindto a myosinhea
Actinstringstogether appears as 2 intertwiningstrands in thin
filament
Tropomyosin Long ropelike regulatoryproteinspiralsaround the
2 actinstrands when at rest it covers actin activesites
Troponin smallerregulatoryprotein Consists of several subunits that
hold tropomyosin in place Bothtropomyosin troponinhelp
to switch
CH Skeletal
Cardiac
10 smooth
Contratility muscle shortens
with force
Excitability musclerespond to
stimulus nerves
Extensibility musclestretchedbeyond
normallength andstill be
Functions of Skeletal musle able to contract
Producing movement Elacticity muscle to recoil to orig
Maintaingbodyposture bodyposition restinglength afterstretched
Guardingbody entrances exits
Maintaingbodytemp
Storing nutrients
Over 700 Skeletal muscles
Somepeople are missing PalmansLongus
16 of people missing mostly whitefemales
MU
CleAHEYMMLmmn
mostmuscles extend over a joint andhave
attachments to botharticulatingbones of thatjoint
upon contraction of the muscle one of the articulating
bones move and theotherone does not
The lessmoveable point of attachment is the Origin
The more moveablepoint of attachmentisthe insertion
Relaxation Contraction
musclebelly musclebelly
Lengthelongated Length Shortened
Width decreased width increased
, Epimysium muscle
Perimysium Fasicle
Endomysiummusclefiber
Sacroplasm the cytoplasm of muscle cells
MY 5EMs mtiioPeveijuMaMebs'ofEpe aiiÉeafroteinscalledmyofilament
sacroplasmtc.li etctiiuituimS'rtghaiiiietrait soatmmfaifit.desmooth ER
that forms weblike network surrounding
eachmicrofibril
myofilaments thousands of proteinbundles Consists of one
or moretypes ofProteins Contractile Regulatory Structural
contractileProtein Produce
tensile
Regulatory Protein control when I muscle fiber can contract
StructuralProtein Holdthe myofilaments in their properplaces ensure
the structuralstability of the myofibril muscle fiber
Thickfilaments Largest diameter Composed of many units of the
contractileProtein myosin Myosin lookslike 2 golfclub
twistedtogether arrangedinside thick filament
Thinfilament made of contractile regulatory structuralProteins
Actin thinfilamentconsistsofmany subunits of the contractileProtein actin
BeadShapedproteinhas an active site thatcanbindto a myosinhea
Actinstringstogether appears as 2 intertwiningstrands in thin
filament
Tropomyosin Long ropelike regulatoryproteinspiralsaround the
2 actinstrands when at rest it covers actin activesites
Troponin smallerregulatoryprotein Consists of several subunits that
hold tropomyosin in place Bothtropomyosin troponinhelp
to switch
