Skeletal Anatomy: Upper Limb Joints
Sternoclavicular joint |
Diarthrotic, synovial, gliding/planar |
Shoulder joint |
Elbow Joint (humeroulnar joint) |
Diarthrotic, synovial, hinge |
Superior and Inferior radioulnar joints |
Diarthrotic, synovial, pivot |
Wrist joint |
Pectoral girdle joints
Sternoclavicular joint
Sternum + clavicle
*Only bony attachment of upper limb to axial skeleton
Acromioclavicular Joint
Acromion process + clavicle
Glenohumeral joint
Glenoid fossa + humerus
Synergists and fixators of arm at shoulder
Prime movers of arm at shoulder
Muscles that position the pectoral girdle
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Mnemonics
Carpal Bones |
So Long To Pinky, Here Comes The Thumb |
Joint Terminology
Flexion |
Decreases angle between 2 bones |
Extension |
Increases angle between 2 bones |
Dorsiflexion |
Flexing or raising the dorsal surface of the foot |
Plantar flexion |
flexing the plantar surface of the foot, depressing the foot and pointing the toes |
Abduction |
movement away from the midline |
Adduction |
Return to midline, movement to midline |
Circumduction |
Moving a limb in circular motion |
Rotation |
Moving a bone around its axis (spinning), movement of a joint in a single rotary axis |
Lateral rotation (External rotation) |
Spinning a bone around its axis outward, away from the body |
Medial rotation (Internal rotation) |
Spinning a bone around its axis inward, toward the body |
Pronation |
Movement of forearm, dorsal side of hand facing forward |
Supination |
Reverse pronation, palm facing forward |
Inversion |
Turn foot in, rotate sole medially |
Eversion |
Turn foot out, rotate sole laterally |
Movers of forearm at elbow joint
Synergists and fixators of arm at shoulder
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Wrist Joints
Radiocarpal Joint (true wrist) |
Radius + scaphoid + lunate |
Diarthrotic, synovial, condylar |
Distal radioulnar |
Distal end of radius + ulna |
Diarthrotic, synovial, pivot |
Intercarpal Joints |
Adjacent carpals |
Diarthrotic, synovial, planar/gliding |
Carpometacarpal of thumb |
Trapezium + first metacarpal |
Diarthrotic, synovial, saddle |
Movers of pivoting radioulnar joints
Movers of wrist and finger joints
Movers of wrist and finger joints
Movers of wrist and finger joints
Anatomical Position: Left & Right
Radius |
Increasing smooth slope (anterior) |
Match the styloid process of the radius with your thumb. |
Ulna |
Styloid process of the ulna is inferior (posterior) |
Match the styloid process of the ulna with pinky |
Humerus |
Capitulum faces forward (anterior) |
the head of the humerus (left,right), Greater Tubercle is lateral |
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