1. SISTEM OTOT.ppt
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SISTEM OTOT
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Transcript of 1. SISTEM OTOT.ppt
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SISTEM OTOT
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Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The Muscular SystemMuscles are responsible for all types of body movementThree basic muscle types are found in the bodySkeletal muscleCardiac muscleSmooth muscle
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Characteristics of MusclesMuscle cells are elongated (muscle cell = muscle fiber)Contraction of muscles is due to the movement of microfilamentsAll muscles share some terminologyPrefix myo refers to musclePrefix mys refers to musclePrefix sarco refers to flesh
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Skeletal Muscle CharacteristicsMost are attached by tendons to bonesCells are multinucleateStriated have visible bandingVoluntary subject to conscious controlCells are surrounded and bundled by connective tissue
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Connective Tissue Wrappings of Skeletal MuscleEndomysium around single muscle fiberPerimysium around a fascicle (bundle) of fibersFigure 6.1
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Connective Tissue Wrappings of Skeletal MuscleEpimysium covers the entire skeletal muscleFascia on the outside of the epimysiumFigure 6.1
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Skeletal Muscle AttachmentsEpimysium blends into a connective tissue attachmentTendon cord-like structureAponeuroses sheet-like structureSites of muscle attachmentBonesCartilagesConnective tissue coverings
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Smooth Muscle CharacteristicsHas no striationsSpindle-shaped cellsSingle nucleusInvoluntary no conscious controlFound mainly in the walls of hollow organsFigure 6.2a
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Cardiac Muscle CharacteristicsHas striationsUsually has a single nucleusJoined to another muscle cell at an intercalated discInvoluntaryFound only in the heartFigure 6.2b
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Struktur otot lurik
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FLEKSI OLEH BISEP
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STRUKTUR OTOT LURIK
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Miofibril
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STRUKTUR MIOFIBRIL
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Penampang ts, ls miofibril
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Akto miosin
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Aktifasi Miosin
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Ikatan aktomiosin
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Kontraksi penuh
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Head and Neck MusclesFigure 6.15
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Trunk MusclesFigure 6.16
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Deep Trunk and Arm MusclesFigure 6.17
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Muscles of the Pelvis, Hip, and ThighFigure 6.19c
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Muscles of the Lower LegFigure 6.20
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Superficial Muscles: AnteriorFigure 6.21
Copyright 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Superficial Muscles: PosteriorFigure 6.22
