Muscular System and Muscle Fiber Function Quiz
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Questions and Answers

Why is it necessary for a whole skeletal muscle to contain multiple tissue types?

  • To assist in sensory perception
  • To facilitate nutrient and waste exchange (correct)
  • To allow for flexibility of movement
  • To provide structural support
  • Which of the following is a part of a skeletal muscle fiber (cell) and directly contributes to its function by storing calcium ions?

  • Z-discs
  • Myofibrils
  • Sarcoplasmic reticulum (correct)
  • T-tubules
  • What is the primary role of acetylcholine (ACh) in muscle cell function?

  • To store energy for muscle contractions
  • To transmit signals from nerves to muscle cells (correct)
  • To break down lactic acid produced during exercise
  • To regulate blood flow in muscle tissues
  • Why is the resting membrane potential (RPM) vital to muscle cell function?

    <p>It enables the ability of muscles to contract</p> Signup and view all the answers

    What differentiates slow and fast twitch fibers in terms of function?

    <p>Contraction speed and endurance</p> Signup and view all the answers

    How do endurance exercises primarily impact muscle tissue?

    <p>By promoting the growth of new blood vessels in muscles</p> Signup and view all the answers

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