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17 Cards in this Set
- Front
- Back
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Muscle skeletal fitness consist of three components: |
Flexibility muscular strength and muscular endurance |
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Functional capacity of the joints to move through a full range of motion |
Flexibility |
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The amount of force of muscle can produce maximal effort |
Muscular strength |
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The ability to sustain a given level of muscle tension |
Muscular endurance |
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Involuntary muscle control by the Autonomic nervous system; located in the walls of blood vessels and throughout the internal organs |
Smooth muscle |
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Controlled by the autonomic nervous system and endocrine system located only in the heart |
Cardiac muscle |
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Voluntary muscles controlled consciously but the somatic nervous system |
Skeletal muscle |
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An individual muscle cell |
Muscle fiber |
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A muscle fibers enclosed by a |
Plasma |
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The cytoplasm a muscle fibers called |
Sarcoplasm |
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Within the sarcoplasm the (BLANK) allows transport of substances throughout muscle fibers |
T – tubules |
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What does the sarcoplasmic reticulum store |
Calcium |
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Myofibrils are made up of |
Sarcomeres |
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The sarcomere is composed of protein filaments of |
Myosin and Actin |
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Thick filament; composed of two protein strands each folded into a globular head at one end |
Myosin |
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What is responsible for muscle contraction |
Interactions between the filaments |
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Thin Filament; composed of what? Which one end attached to A Z disk |
Actin, Tropomyosin, and troponin |
