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Questions and Answers

What is the primary function of joints in the human skeleton?

  • To store minerals and produce blood cells
  • To give the skeleton mobility and hold it together (correct)
  • To support the body during physical activity
  • To connect muscles to bones
  • Which of the following is NOT a structural classification of joints?

  • Synarthrosis (correct)
  • Fibrous
  • Synovial
  • Cartilaginous
  • Which type of joint is characterized by immobility and is formed by short collagenic fibers?

  • Gomphosis
  • Suture (correct)
  • Syndesmosis
  • Symphysis
  • Which type of cartilage provides the most support and flexibility and is the most abundant in the skeletal system?

    <p>Hyaline cartilage</p> Signup and view all the answers

    What distinguishes synovial joints from other joint types?

    <p>They contain a joint cavity filled with synovial fluid</p> Signup and view all the answers

    Which type of functional joint classification allows for slight movement?

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

    What is the characteristic feature of gomphosis joints?

    <p>They connect teeth to their sockets via a periodontal ligament</p> Signup and view all the answers

    Which of the following is true about cartilage in the human body?

    <p>Hyaline cartilage forms the blueprint for bone development.</p> Signup and view all the answers

    Which type of cartilage is characterized by a matrix containing many elastic fibers and is found in the epiglottis and external ear?

    <p>Elastic cartilage</p> Signup and view all the answers

    What type of joint is a gomphosis, and what is its primary characteristic?

    <p>A peg-in-socket joint connecting a tooth to its socket</p> Signup and view all the answers

    Which type of fibrous joint is characterized by a minimal amount of fibrous tissue and allows for bone growth in youth?

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

    Which description accurately reflects the structure of fibrocartilage?

    <p>Contains two rows of thick collagen fibers and chondrocytes</p> Signup and view all the answers

    What type of fibrous joint connects bones exclusively by longer ligaments and can allow slight movement?

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

    Which type(s) of fibrous joint(s) are classified under synarthrosis?

    <p>Gomphoses and sutures</p> Signup and view all the answers

    The interlocking and wavy edges of bones are found in which type of joint?

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

    During middle age, what happens to the fibrous tissue of sutures?

    <p>It ossifies and leads to bone fusion</p> Signup and view all the answers

    What is the primary function of the synovial membrane within a synovial joint?

    <p>To produce synovial fluid.</p> Signup and view all the answers

    Which statement correctly describes the composition of synovial fluid?

    <p>It resembles raw egg white and contains glycoproteins.</p> Signup and view all the answers

    What role do sensory nerve fibers play in synovial joints?

    <p>They monitor the stretch of the capsule.</p> Signup and view all the answers

    What is the structural significance of the fibrous capsule in a synovial joint?

    <p>It strengthens the joint to prevent bone separation.</p> Signup and view all the answers

    How do bursae function in relation to synovial joints?

    <p>They act as ball bearings to reduce friction.</p> Signup and view all the answers

    What defines the attachment points of muscles across a joint?

    <p>Origin is the attachment to the immovable bone.</p> Signup and view all the answers

    What is the significance of the blood vessels in synovial joints?

    <p>They supply the synovial membrane, which produces synovial fluid.</p> Signup and view all the answers

    In which planes is joint movement typically described?

    <p>Transverse, frontal, and sagittal planes.</p> Signup and view all the answers

    Which type of joint only allows for slipping or gliding movements?

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

    Which of the following joints is not classified as uniaxial?

    <p>Condyloid joint</p> Signup and view all the answers

    What type of joint allows the greatest range of motion?

    <p>Ball and socket</p> Signup and view all the answers

    Which joint type allows for flexion and extension only?

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

    In terms of synovial joints, which of the following does not exhibit biaxial motion?

    <p>Hinge joint</p> Signup and view all the answers

    Which joint is an example of a pivot joint?

    <p>Proximal radioulnar joint</p> Signup and view all the answers

    What characterizes saddle joints?

    <p>One bone has a concave surface and the other has a convex surface</p> Signup and view all the answers

    Which type of lever requires the effort to be applied between the fulcrum and the load?

    <p>Third class lever</p> Signup and view all the answers

    What distinguishes a third-class lever from other types of levers in the human body?

    <p>The effort is applied between the load and the fulcrum.</p> Signup and view all the answers

    Which of the following motions is characterized by a reduction in the angle of a joint?

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

    What type of motion occurs when one flat bone surface glides over another?

    <p>Gliding motion</p> Signup and view all the answers

    What defines the movement of abduction at a joint?

    <p>Movement away from the midline of the body.</p> Signup and view all the answers

    Which joint movement describes the rolling of the foot onto its outer edge?

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

    In which type of lever is the fulcrum located between the load and the effort?

    <p>First-class lever</p> Signup and view all the answers

    What type of movement is described when the radius and ulna are parallel?

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

    Which joint involves rotational motion as it turns around its own long axis?

    <p>Shoulder joint</p> Signup and view all the answers

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