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| What mass of body do muscle cells make up? |
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Definition
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| What are 3 types of muscle? |
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4 Functions of Skeletal Muscle: Voluntary/Involuntary? Functional characteristics: |
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Definition
Functions: Movement, Posture, Heat, Joints Voluntary Movement Characteristics: Excitability, Contractility, Extensibility, Elasticity |
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4 Functional Characteristics of Skeletal Muscle |
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Definition
Excitability, Contractility, Extensibility, Elasticity |
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Definition
| ability to reveive and respond to a stimulus |
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Definition
| ability to shorten forcibily when stimulated |
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Definition
| ability to recoil after stretching |
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cytoplasm
contains large amounts of stored glycogen and myoglobin |
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Definition
-largest of muscle types
-striated
-voluntary
-can be contracted rapidly and vigorously; tires easily and requires rest
-uses alot of oxygen and nutrients; generates alot of waste (extensitve capillary network) |
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Definition
-only in heart
-striated
-involuntary
-contracts at a steady rate-- can contract faster for short periods |
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Definition
-found in hollow visceral organs
-non-striated
-involuntary
-contractions: slow and sustained |
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Definition
| epimysium is fused to periosteum or perichondrium |
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Term
| Indirect muscle attachment |
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Definition
| muscle fascia extends beyond the muscle as a rope-like tendon that anchors the muscle to bone, cartilage, or fascia of another bone |
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Definition
| protein filaments that are are arranged to make myofibrils |
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Definition
thick filaments
rod-like tail and 2 globular heads; heads of myosin contain ATP binding sites |
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Definition
Thin filaments
looks like a twisted double; contains 2 active sites for myosin binding
2 associated regulatory proteins:
Tropomyosin & Troponin |
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Definition
| Regulatory proteins associated with actin that control myosin-actin interaction |
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