The Muscular System: Attachment of Muscles
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Questions and Answers

What structures unite to form tendons at the extremities of muscles?

  • Fibrous connective tissue of the endomysium, perimysium, and epimysium (correct)
  • Cartilage and ligaments
  • Muscle fibers only
  • Synovial membrane sheaths
  • Which structure facilitates smooth, frictionless movement of tendons passing through bony tunnels?

  • Bursa
  • Periosteum
  • Aponeurosis
  • Tendon sheaths (correct)
  • Where is the belly of the biceps muscle located?

  • Along the shaft of the humerus (correct)
  • Attached to the radius
  • Over the elbow joint
  • Attached to the scapula
  • Which type of tendon is flat and broad?

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

    Which structure helps relieve pressure when a muscle or tendon moves over a bony prominence?

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

    Where are bursa usually found?

    <p>Near joints</p> Signup and view all the answers

    What occurs when a muscle contracts?

    <p>A pull is exerted on both bones attached to the muscle</p> Signup and view all the answers

    What stabilizes a bone when another bone is pulled toward it during muscle contraction?

    <p>Isometric contractions of other muscles</p> Signup and view all the answers

    Study Notes

    Attachment of Muscles

    • Muscles attach to bones, cartilage, or ligaments through fibrous connective tissue tendons, which vary in length from 0.5cm to 35cm
    • Tendons unite the endomysium, perimysium, and epimysium at the muscle extremities
    • Aponeurosis is a broad, flat tendon
    • Tendons may pass under ligamentous bands or through bony tunnels, encased in synovial membrane sheaths for smooth movement
    • Synovial sacs called bursae relieve pressure where muscles or tendons contact bony prominences or skin moves over bone

    Action of Muscles

    • The belly of a muscle lies along a bone shaft, never over a joint
    • Muscles are firmly attached to different bones at each end through tendons that cross a joint
    • Muscle contraction exerts a pull on both bones, but one bone is stabilized by isometric contractions of other muscles, causing the other bone to move towards it
    • A muscle's belly lies parallel to a bone shaft, with tendons attached to different bones, enabling movement

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    Description

    Learn about the attachment of muscles, tendons, and aponeurosis to bones, cartilage, and ligaments in the human body.

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