Characteristics of Skeletal Muscle Tissue
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Questions and Answers

What characteristic of muscle tissue allows it to return to its original shape after contraction?

  • Contractability
  • Extensibility
  • Excitability
  • Elasticity (correct)

    • Which type of muscle tissue has a single central nucleus and is found in the walls of hollow organs?

  • Voluntary muscle
  • Cardiac muscle
  • Skeletal muscle
  • Smooth muscle (correct)

    • What type of muscle tissue is capable of undergoing mitosis and regeneration?

  • Cardiac muscle
  • Voluntary muscle
  • Smooth muscle (correct)
  • Skeletal muscle

    • What is the characteristic of skeletal muscle that allows it to contract only fully?

    <p>All or none contraction</p> Signup and view all the answers

    Which type of muscle tissue has intercalated discs for cell-to-cell junctions?

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

    What type of muscle tissue has a striated appearance due to the arrangement of actin and myosin?

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

    What is the type of muscle tissue that is controlled by the autonomic nervous system?

    <p>All of the above</p> Signup and view all the answers

    Which type of muscle tissue is responsible for moving joints?

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

    What is the characteristic of muscle tissue that allows it to respond to stimuli?

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

    What triggers the binding of myosin heads to actin during muscle contraction?

    <p>Calcium binds to Troponin</p> Signup and view all the answers

    Which condition causes a muscle to remain contracted due to lack of ATP?

    <p>Rigor Mortis</p> Signup and view all the answers

    What role does the sarcoplasmic reticulum play in muscle contraction?

    <p>It stores and pumps calcium</p> Signup and view all the answers

    In a multipolar neuron, where are the presynaptic terminals located?

    <p>At one end of the axon</p> Signup and view all the answers

    Which type of neuron has the perikaryon positioned in the middle of the axon?

    <p>Bipolar neuron</p> Signup and view all the answers

    What happens to stop muscle contraction?

    <p>Calcium unbinds from Troponin</p> Signup and view all the answers

    What is the function of dendrites in a neuron?

    <p>Receive nerve impulses</p> Signup and view all the answers

    How does the unipolar neuron differ from the multipolar neuron?

    <p>Unipolar has dendrites in the middle of the axon</p> Signup and view all the answers

    Which component is responsible for the sliding movement of filaments during muscle contraction?

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

    Where is the cell body of a neuron primarily located?

    <p>Mainly in the CNS or ganglia of the PNS</p> Signup and view all the answers

    In a muscle fibre, what triggers the deformation of tropomyosin, allowing myosin to bind to a new site?

    <p>The release of calcium from the sarcoplasmic reticulum</p> Signup and view all the answers

    What is the primary function of the sarcoplasmic reticulum in muscle contraction?

    <p>To store and release calcium ions</p> Signup and view all the answers

    During muscle contraction, what is the relationship between actin and myosin filaments?

    <p>Actin filaments slide past myosin filaments, causing them to overlap</p> Signup and view all the answers

    What is the role of titin strands in muscle contraction?

    <p>To regulate the sliding of actin and myosin filaments</p> Signup and view all the answers

    What is the primary function of dendrites in a neuron?

    <p>To receive and integrate nerve impulses</p> Signup and view all the answers

    What is the characteristic of neurons that allows them to transmit information over long distances?

    <p>The presence of axons</p> Signup and view all the answers

    What is the primary difference between bipolar and multipolar neurons?

    <p>The location of the perikaryon</p> Signup and view all the answers

    What is the condition in which a muscle remains contracted due to a lack of ATP?

    <p>Rigor mortis</p> Signup and view all the answers

    What is the role of calcium in muscle contraction?

    <p>To bind to troponin, allowing myosin to bind to actin</p> Signup and view all the answers

    What is the primary function of the perikaryon in a neuron?

    <p>To integrate and process nerve impulses</p> Signup and view all the answers

    What is a unique feature of cardiac muscle tissue compared to other muscle tissues?

    <p>Intercalated discs for cell-to-cell junctions</p> Signup and view all the answers

    Which type of muscle tissue has cells that are large, elongated, and multinucleated?

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

    What is a characteristic of muscle tissue that allows it to stretch without tearing?

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

    Why is skeletal muscle unable to regenerate effectively?

    <p>Inability to undergo mitosis</p> Signup and view all the answers

    Which type of muscle is controlled by the autonomic nervous system and is found in the walls of hollow organs?

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

    What role do satellite cells play in skeletal muscle?

    <p>Aid in recovery and repair</p> Signup and view all the answers

    What differentiates smooth muscle from skeletal muscle regarding its appearance?

    <p>Single central nucleus</p> Signup and view all the answers

    Which quality of muscle tissue allows it to return to its original shape after being stretched or contracted?

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

    How does cardiac muscle ensure coordinated contraction of the heart?

    <p>Intercalated discs</p> Signup and view all the answers

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