The Muscular System Quiz
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Questions and Answers

Which type of muscle tissue is responsible for keeping the heart beating?

  • Smooth muscle
  • Muscle fibers
  • Cardiac muscle (correct)
  • Skeletal muscle
  • What are the two main players in muscle contraction?

  • Actin and myosin (correct)
  • Skeletal and smooth muscles
  • Actin and microfilaments
  • Microfilaments and myosin
  • What are muscle cells also called?

  • Muscle fibers (correct)
  • Epi
  • Microfilaments
  • Sarco
  • What is the term used to describe the ability of cardiac muscle to react to signals?

    <p>Excitability</p> Signup and view all the answers

    Which type of muscle tissue has the ability to stretch when needed?

    <p>All types of muscle tissue</p> Signup and view all the answers

    Which trait describes the ability of cardiac muscle to get shorter when it's told?

    <p>Contractibility</p> Signup and view all the answers

    Which trait allows cardiac muscle to stretch when needed?

    <p>Extensibility</p> Signup and view all the answers

    Which type of muscle tissue is known for its large, powerful cells?

    <p>Skeletal muscle</p> Signup and view all the answers

    What is the function of mitochondria in muscle cells?

    <p>To provide energy</p> Signup and view all the answers

    What is the role of nuclei in muscle cells?

    <p>To control muscle movement</p> Signup and view all the answers

    Which type of tissue keeps all the muscle cells together?

    <p>Connective tissue</p> Signup and view all the answers

    What is the name of the storage room that holds important substances for muscle work such as calcium ions?

    <p>Sarcoplasmic reticulum</p> Signup and view all the answers

    Which layer of muscle tissue is responsible for holding the muscle fibers together, similar to a plastic bag holding straws together?

    <p>Perimysium</p> Signup and view all the answers

    What is the outer layer, in skeletal muscle, that wraps around the entire muscle, providing strength and protection?

    <p>Epimysium</p> Signup and view all the answers

    Which type of muscle helps you move your bones, skin, and create facial expressions?

    <p>Skeletal muscle</p> Signup and view all the answers

    What are the tiny units inside the muscle cell that are lined up end to end?

    <p>Myofibrils</p> Signup and view all the answers

    Which type of tissue connects muscles to bones or other muscles?

    <p>Aponeuroses</p> Signup and view all the answers

    What is the function of aponeuroses in the body?

    <p>To hold muscles in the right position</p> Signup and view all the answers

    How can tendons be described?

    <p>Strong, fibrous bands that attach muscles to bones</p> Signup and view all the answers

    Which type of muscle tissue is found in the walls of organs and hollow structures?

    <p>Smooth muscle</p> Signup and view all the answers

    What shape are smooth muscle cells?

    <p>Spindled</p> Signup and view all the answers

    Which type of muscle tissue works automatically, without conscious control?

    <p>Both B and D</p> Signup and view all the answers

    What is the appearance of smooth muscle cells?

    <p>Smooth and even</p> Signup and view all the answers

    How many control centers does each smooth muscle cell have?

    <p>One</p> Signup and view all the answers

    Where is smooth muscle found in the body?

    <p>All over the body</p> Signup and view all the answers

    What are the tiny units inside smooth muscle cells that help them contract?

    <p>Actin and Myosin</p> Signup and view all the answers

    Where are multiunit smooth muscles primarily found in the body?

    <p>Blood vessels</p> Signup and view all the answers

    Which type of smooth muscle requires instructions from the autonomic nervous system?

    <p>Multiunit Smooth Muscle</p> Signup and view all the answers

    Which type of muscle tissue is found covering the walls of hollow organs?

    <p>Visceral smooth muscle</p> Signup and view all the answers

    What happens to smooth muscle when it is stretched?

    <p>It contracts</p> Signup and view all the answers

    Which type of muscle tissue is exclusively found in the heart?

    <p>Cardiac muscle</p> Signup and view all the answers

    What is the shape of cardiac muscle cells?

    <p>Small and branching</p> Signup and view all the answers

    How many control centers (nuclei) does each cardiac muscle cell have?

    <p>One</p> Signup and view all the answers

    Cardiac muscle has a striped appearance: True or False?

    <p>True</p> Signup and view all the answers

    What is the role of intercalated disks in cardiac muscle cells?

    <p>To connect heart muscle cells and ensure they work together</p> Signup and view all the answers

    Which type of muscle tissue doesn't need outside signals to start contracting?

    <p>Cardiac muscle</p> Signup and view all the answers

    What is the pattern of contractions in cardiac muscle?

    <p>Rapid and wavelike</p> Signup and view all the answers

    Which two systems innervate (connect) the cardiac muscle?

    <p>Sympathetic and parasympathetic</p> Signup and view all the answers

    Which system speeds up the cardiac muscle?

    <p>Sympathetic</p> Signup and view all the answers

    Which term is used to describe the tiny structures inside a muscle cell that act as the inner framework?

    <p>Myofibrils</p> Signup and view all the answers

    What shape are muscle cells?

    <p>Straw-like</p> Signup and view all the answers

    What is the function of the nuclei in a muscle cell?

    <p>Control centers</p> Signup and view all the answers

    Which type of myofilaments are responsible for contractions in sarcomeres?

    <p>Both thick myosin and thin actin</p> Signup and view all the answers

    What are the visible bands in sarcomeres called?

    <p>A band, I band, and Z line</p> Signup and view all the answers

    What is the function of Z lines in muscles?

    <p>To help muscles work smoothly</p> Signup and view all the answers

    What happens to the A band when you flex your muscles?

    <p>It gets shorter</p> Signup and view all the answers

    Which part of the sarcomere contains actin but no myosin?

    <p>The I band</p> Signup and view all the answers

    What happens to the I band when your muscles contract?

    <p>It gets shorter</p> Signup and view all the answers

    Study Notes

    Cardiac Muscle Striped (striated) Appearance: When you look closely, you can see stripes in this muscle.

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    Description

    Test your knowledge on muscle tissue and its various types! Learn about the three types of muscle tissue - skeletal, smooth, and cardiac - and discover the role of microfilaments, actin, and myosin in muscle contraction. Challenge yourself with this informative quiz on muscle tissue!

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