Joints of Upper Limb

by James Pickering, PhD

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    In this lecture, we’re going to look at the joints of the upper limb. So we’ll look at their articulations, we’ll look at the ligaments that support the joints, and then we’ll look at some of the movements that are capable of being performed at these joints. We’ll look at the sternoclavicular, the acromioclavicular, the glenohumeral, and the elbow joints. We’ll look at the proximal and distal radio-ulnar joints. We’ll then look at the wrist, carpal, carpometacarpal, metacarpophalangeal, and interphalangeal joints. We’ll look at these last few joints all together really as the joints of the hand. So let’s start with the sternoclavicular joint. And on the screen, we can see an anterior view of the sternoclavicular joint that is occurring between the sternum which we can see here in the midline and the two clavicles, the sternal ends of the clavicles. Now, the joint capsule around all of these joints, there’s going to be a joint capsule. For this one, it actually contains an articular disc. So here, we can see the sternal end of the clavicle. Here, we can see the articular surface of the sternum, specifically the manubrium of the sternum. The manubrium of the sternum, remember, is the most superior part. And within the joint capsule, there is an articular disc, and this separates the capsule into two. The articular disc is important as a shock absorber. Remember, the clavicle is the only attachment of the upper limb, the superior appendicular skeleton to the axial skeleton. So it can transmit a quite heavy load of force. Attached to the anterior and posterior sternoclavicular ligaments, we can see we’ve got an anterior sternoclavicular ligament here. On the posterior side, there’ll be a posterior sternoclavicular ligament, and this shock absorber, this articular disc is attached to them via...

    About the Lecture

    The lecture Joints of Upper Limb by James Pickering, PhD is from the course Upper Limb Anatomy. It contains the following chapters:

    • Sternoclavicular joint
    • Acromioclavicular joint
    • Glenohumeral joint
    • Elbow joint
    • Radio-ulnar joints
    • Joints of the hand
    • Joints of digits

    Included Quiz Questions

    1. The coracoacromial arch prevents superior dislocation
    2. The humeral head usually dislocates posteriorly
    3. The coracohumeral ligament reinforces the joint inferiorly
    4. The glenoid fossa articulates with over a half of the humeral head
    5. The shoulders joint capsule is relatively tight and immobile
    1. The coracohumeral ligament strengthens the joints superiorly
    2. The coracohumeral ligament strengthens the joints inferiorly
    3. The coracohumeral ligament strengthens the joints anterioly
    4. The coracohumeral ligament strengthens the joints posteriorly
    1. It is the primary supinator of the forearm
    2. It is the primary flexor of the forearm at the elbow joint
    3. It is innervated by the median nerve
    4. Its short head originates from the acromion of the scapula
    5. Its long head originates from the infraglenoid tubercle of the scapula
    1. Flexion/Extension
    2. Pronation/Supination
    3. Lateral/Medial rotation
    4. Abduction/Adduction
    5. Flexion /Extension and Pronation/Supination
    1. The radial/lateral collateral ligament of the elbow is continuous with the annular ligament
    2. The capitulum articulates with the notch of the trochlea
    3. The coronoid fossa limits hyperextension
    4. The carrying angle in females is approximately 25 degrees
    5. Its bony components are the humerus and the radius
    1. Trapezium
    2. Scaphoid
    3. Trapezoid
    4. Triquetrum
    5. Lunate

    Author of lecture Joints of Upper Limb

     James Pickering, PhD

    James Pickering, PhD

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