BIO 205: Axial Skeleton and Upper Limb
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Questions and Answers

What is the structural classification of the Sternoclavicular Joint?

  • Synovial, Pivot
  • Synovial, Saddle (correct)
  • Synovial, Hinge
  • Synovial, Plane

    • What articulating bones are involved in the Sternoclavicular Joint?

    Clavicular notch, Sternal end of clavicle, & First costal cartilage

    What actions can occur at the Sternoclavicular Joint? (Select all that apply)

  • Rotational Movement
  • Circumduction (correct)
  • Elevation (correct)
  • Depression (correct)

    • What is the functional classification of the Sternoclavicular Joint?

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

    What is the structural classification of the Acromioclavicular Joint?

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

    What action occurs at the Acromioclavicular Joint?

    <p>Gliding of Scapula on Clavicle</p> Signup and view all the answers

    What is the structural classification of the Humeroulnar Joint?

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

    What actions can be performed at the Elbow Joint?

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

    What is the structural classification of the Distal Radioulnar Joint?

    <p>Synovial, Pivot</p> Signup and view all the answers

    What action occurs at the Radioulnar Joints?

    <p>Rotation of Radius with respect to the Ulna</p> Signup and view all the answers

    What is the structural classification of the Radiocarpal Joint?

    <p>Synovial, Condylar</p> Signup and view all the answers

    What are the articulating bones of the Radiocarpal Joint?

    <p>Distal end of the Radius, Lunate, Scaphoid, &amp; Triquetrum</p> Signup and view all the answers

    What is the structural classification of the Intercarpal Joint?

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

    What actions can be performed at the 1st Carpometacarpal Joint?

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

    What is the structural classification of the 1st Carpometacarpal Joint?

    <p>Synovial, Saddle</p> Signup and view all the answers

    What are the articulating bones of the 1st Carpometacarpal Joint?

    <p>1st Metacarpal &amp; Trapezium</p> Signup and view all the answers

    What action occurs at the 2nd-5th Carpometacarpal Joints?

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

    What is the structural classification of the 1st Metacarpophalangeal Joint?

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

    What is the structural classification of the 2nd-5th Metacarpophalangeal Joints?

    <p>Synovial, Condylar</p> Signup and view all the answers

    What actions can be performed at the 2nd-5th Metacarpophalangeal Joints?

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

    What is the structural classification of Interphalangeal Joints?

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

    What is the structural classification of the Epiphyseal Plate?

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

    What is the functional classification of the Epiphyseal Plate?

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

    What is the structural classification of the Atlanto-Occipital Joint?

    <p>Synovial, Condylar</p> Signup and view all the answers

    What action can occur at the Atlanto-Occipital Joint?

    <p>Extension/Flexion of Head, Slight lateral flexion of head to the sides</p> Signup and view all the answers

    What is the structural classification of the Atlanto-Axial Joint?

    <p>Synovial, Pivot</p> Signup and view all the answers

    What action occurs at the Atlanto-Axial Joint?

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

    What is the structural classification of Intervertebral Joints (between articular processes)?

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

    What is the structural classification of Intervertebral Joints (between vertebral bodies)?

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

    What is the functional classification of Intervertebral Joints (between vertebral bodies)?

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

    What is the structural classification of the Vertebrocostal Joint?

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

    What action occurs at the Vertebrocostal Joint?

    <p>Some slight gliding</p> Signup and view all the answers

    What is the structural classification of the Lumbosacral Joint (Body)?

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

    What is the functional classification of the Lumbosacral Joint (Body)?

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

    What is the structural classification of the Lumbosacral Joint (Facets)?

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

    What is the functional classification of the Lumbosacral Joint (Facets)?

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

    What is the structural classification of the Costochondral Joint?

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

    What are the articulation parts of the Costochondral Joint?

    <p>Sternal end of Ribs and Costal cartilage</p> Signup and view all the answers

    What is the functional structure of the Costochondral Joint?

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

    What is the structural classification of the 1st Sternocostal Joint?

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

    Study Notes

    Structural Classifications and Actions of Joints

    • Sternoclavicular Joint

      • Classified as synovial and saddle.
      • Articulating bones include clavicular notch, sternal end of the clavicle, and first costal cartilage.
      • Actions encompass elevation, depression, and circumduction.
      • Functionally categorized as diarthrosis.

    • Acrominoclavicular Joint

      • Structural classification is synovial and plane.
      • Main action involves gliding of the scapula on the clavicle.

    • Humeroulnar Joint

      • Classified as synovial and hinge.
      • Primary actions are extension and flexion of the forearm.

    • Distal Radioulnar Joint

      • Identified as synovial and pivot.
      • Action involves the rotation of the radius with respect to the ulna.

    • Radiocarpal Joint

      • Structural classification is synovial and condylar.
      • Articulating bones are the distal end of the radius, lunate, scaphoid, and triquetrum.

    • Intercarpal Joint

      • Classified as synovial and plane.

    • 1st Carpometacarpal Joint (Thumb)

      • Structure classified as synovial and saddle.
      • Articulating bones comprise the 1st metacarpal and trapezium.
      • Versatile actions include adduction, abduction, circumduction, extension, flexion, and opposition.

    • 2nd-5th Carpometacarpal Joints

      • Actions mainly involve gliding.

    • Metacarpophalangeal Joints

      • 1st Joint (Thumb) classified as synovial and hinge.
      • 2nd-5th Joints classified as synovial and condylar; actions encompass abduction, adduction, flexion, extension, and circumduction.

    • Interphalangeal Joints

      • Both proximal and distal joints are classified as synovial and hinge.

    Other Notable Joints

    • Epiphyseal Plate

      • Classified as cartilaginous and synchondrosis; functionally, it is a synarthrosis.

    • Atlanto-Occipital Joint

      • Classified as synovial and condylar; allows for extension/flexion of the head and slight lateral flexion.

    • Atlanto-Axial Joint

      • Identified as synovial and pivot; facilitated head rotation.

    • Intervertebral Joints

      • Joints between articular processes are synovial and plane.
      • Joints between vertebral bodies are cartilaginous and symphysis, functionally classified as amphiarthrosis.

    • Vertebrocostal Joint

      • Classified as synovial and plane, involved in slight gliding motions.

    • Lumbosacral Joint

      • Joint between the body classified as cartilaginous and symphysis (amphiarthrosis).
      • Facets classified as synovial and plane (diarthrosis).

    • Costochondral Joint

      • Classified as cartilaginous and synchondrosis; consists of the sternal end of ribs and costal cartilage, functionally a synarthrosis.

    Sternocostal Joints

    • 1st Joint classified as cartilaginous and synchondrosis.
    • 2nd-7th Joints categorized as synovial; serve as important articulations in the thoracic cage.

    These classifications and joints play crucial roles in the mobility and stability of the axial skeleton and upper limb.

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    Description

    This quiz focuses on the articulations and structural classifications of the axial skeleton and upper limb, particularly the sternoclavicular joint. Review key concepts such as joint structure, articulating bones, and various actions associated with the joint. Test your knowledge with flashcard-style questions for a better understanding of human anatomy.

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