Lecture 4 - Articulations A+P1
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Questions and Answers

Which type of joint allows for flexion and extension only?

  • Pivot joint
  • Hinge joint (correct)
  • Gliding joint
  • Ball and Socket joint
  • What is the characteristic of the condyloid joint?

  • Permits rotation only
  • Consists of a rounded or pointed surface of one bone articulating with a ring formed by bone and ligament
  • Allows for flexion and extension only
  • Has a convex projection of one bone fitting into an oval-shaped depression in another (correct)
  • Which type of joint has a saddle-shaped bone and another bone that sits in the saddle?

  • Gliding joint
  • Hinge joint
  • Saddle joint (correct)
  • Pivot joint
  • What is the characteristic movement of the pivot joint?

    <p>Rotation only</p> Signup and view all the answers

    Which type of joint has a convex surface of one bone fitting into the concave part of another?

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

    What is the opposite movement of flexion?

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

    What type of joint is characterized by a fibrocartilaginous disc and is designed for strength and shock absorbency?

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

    What type of joint is found between the first rib and sternum in children, but becomes a synostosis as the bones grow?

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

    What is the function of the synovial fluid in synovial joints?

    <p>To absorb shock and reduce friction</p> Signup and view all the answers

    What type of ligament is found outside the joint capsule and stabilizes the joint?

    <p>Extracapsular ligament</p> Signup and view all the answers

    What is the function of the menisci in the knee joint?

    <p>To absorb shock and deepen the articular surface</p> Signup and view all the answers

    What type of joint is characterized by a sheet of dense connective tissue and is found between the tibia and fibula, and radius and ulna?

    <p>Interosseous membrane</p> Signup and view all the answers

    What is the function of the labrum in the shoulder and hip joints?

    <p>To deepen the articular surface</p> Signup and view all the answers

    What is the function of the bursae in joints?

    <p>To cushion movement between tendons and bones</p> Signup and view all the answers

    What type of joint is characterized by a freely movable joint with a synovial cavity or joint space?

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

    What type of joint is characterized by a fibrous joint that is immovable in adults, but not closed in children?

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

    What is the term for the movement of a bone away from the midline?

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

    What is the term for the movement of a bone in a circle, involving a continuous sequence of flexion, abduction, extension, and adduction?

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

    What is the term for the rotation of a bone around its own axis?

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

    What is the special movement of the foot that involves the upward movement of the toes?

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

    What is the type of joint that allows for the greatest degree of movement of any joint?

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

    What is the ligament that provides the greatest amount of stability to the shoulder joint?

    <p>Rotator cuff muscles</p> Signup and view all the answers

    What is the joint that connects the acromion and clavicle?

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

    What is the type of joint that the elbow joint is classified as?

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

    What is the ligament that surrounds the radial head and holds it to the radial notch of the ulna?

    <p>Annular ligament</p> Signup and view all the answers

    What is the joint that consists of three joints within one synovial cavity?

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

    What is the primary function of the Anterior Cruciate Ligament (ACL) in the knee joint?

    <p>Prevents the femur from sliding posteriorly to the tibia</p> Signup and view all the answers

    Which meniscus is nearly circular in shape?

    <p>Lateral Meniscus</p> Signup and view all the answers

    What type of fracture is often associated with a torn Posterior Cruciate Ligament (PCL)?

    <p>Tibial spine fracture</p> Signup and view all the answers

    Which ligament prevents excessive inversion of the foot?

    <p>Anterior talofibular ligament</p> Signup and view all the answers

    What is the main function of the vertebral discs in the spine?

    <p>To absorb shock and distribute pressure evenly</p> Signup and view all the answers

    Which type of joint is characterized by a strong, fibrous connective tissue between the bones?

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

    What is the function of flexible connective tissue in the human body?

    <p>To form articulations and hold bones together</p> Signup and view all the answers

    What is the main characteristic of synarthrosis joints?

    <p>They are immovable</p> Signup and view all the answers

    What type of connective tissue binds bones together in fibrous joints?

    <p>Dense connective tissue</p> Signup and view all the answers

    Which type of joint is characterized by the presence of a synovial cavity?

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

    What is the main difference between functional and structural classification of joints?

    <p>Type of movement permitted</p> Signup and view all the answers

    Which type of joint is characterized by the presence of dense connective tissue and accessory ligaments?

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

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