68WM6 A&P 2 Muscular System
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on it to display the answer.
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| What are the three types of muscle tissue? | Skeletal, Cardiac and Smooth
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| What are the unique dark bands called that make up Cardiac Muscle? | Intercallated disks
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| How is smooth muscle described? | Involuntary, Non Striated and Visceral with a single nucleus
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| How is Skeletal muscle described? | Striated and voluntary with multiple nuclei
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| What are the the functional parts of a skeletal muscle? | Origin, Insertion and Body
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| How are sarcomere seperated from each other? | Dark bands called Z-lines
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| What are the three primary functions of skeletal muscle? | Movement, Posture or muscle tone and Heat Production
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| What contractions allow us to maintain body position? | Tonic contractions
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| What produces most of the heat required to maintain normal body temperature? | Contraction of muscle fibers
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| What is the result of muscle cells being repeatedly stimulated with adequate rest? | Fatigue
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| What chemical produces the energy necessary for muscle contraction? | ATP
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| What is produced when a muscle contracts without adequate oxygen? | Lactic Acid (Soreness)
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| What is the metabolic effect required to burn excess lactic acid that may accumulate during prolonged periods of exercise? | Oxygen Debt
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| What is needed to begin any muscle contraction? | A Stimulus, or electrical nerve impulse
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| What is the specialized never that transmits an impulse to a muscle? | Motor Neuron
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| What is the specialized point of contact between a nerve ending and the muscle it fires to? | Neuromuscular Junction
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| What is the minimal level of stimulation required to cause a muscle fiber to contract? | Threshold Stimulus
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| What are quick, jerky movements? | Twitch
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| What are sustained and steady muscular contractions in rapid succession? | Tetanic
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| What is strength training? | Exercise involving contraction of muscles against heavy resistance
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| What is endurance training? | Increasing a muscle's ability to sustain moderate exercise over a long perios of time
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