A researcher is investigating the composition of muscle tissue in thegastrocnemius muscles (in the calf of the leg) of athletes. She takesa needle biopsy from the muscle and determines the concentration(or enzyme activity) of several substances. Describe the major differences this researcher sees when comparing the muscles of athletes whoperform in the following events: 100-meter dash, weight lifting, and10,000-meter run

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A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

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A: Fast twitch muscle is a muscle which helps you to do short and quick responses

Q: muscle differs from skeletal muscle in: (more than one answer may be correct) Question 6 options:…

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Q: Match the word in the word box with the following definition this type of stretching involves…

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Q: Which of the following correctly states the importance of an action potential to muscle contration?…

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Q: explain the structure of skeletal muscle, linking the structure to their function as you do this.

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Q: Which of the following statements is true regarding muscle contraction? O When a muscle contracts,…

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Q: List TWO (2) differences between smooth muscle contraction and skeletal muscle contraction.

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Q: The type of muscle contraction where the muscle contracts but exhibits no change in length is called

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.