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19 Cards in this Set
- Front
- Back
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Sternoclavicular Articulation |
Type: Saddle (double gliding)
Ligaments: Anterior and posterior sternoclavicular ligaments Interclavicular ligament Costoclavicular ligament
Articular disc is complete
Motion: Elevation/Depression, Re/Protraction, Rotation |
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Acromio-clavicular Articulation |
Type: Plane (gliding)
Ligaments: Acromioclavicular ligament Coracoclavicular ligament (conoid and trapezoid ligaments)
Articular disc is partial
Motion: Elevation/Depression, Anterior/Posterior, Rotation |
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Glenohumeral Articulation |
Type: Ball and socket
Ligaments: Superior, Middle, Inferior Glenohumeral Ligaments Coracohumeral Ligament
Accessory Ligaments: Coracoacromial ligament Transverse humeral ligament Suprascapular ligament (superior transverse scapular ligament) Spinoglenoid ligament (inferior transverse scapular ligament)
Glenoid labrum: fibrocartilaginous collar, superiorly continuous with tendon of long head of biceps brachii muscle
Motion: Three planes plus circumduction |
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Elbow Joint |
Bones Involved: Humerus (Capitulum and Trochlea) Ulna (Trochlear notch) Radius (Head)
Classification: Hinge
Ligaments: Radial Collateral ligament (lateral collateral) Ulnar Collateral ligament (medial collateral)
Movements: Elbow flexion/extension |
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Proximal Radio-Ulnar Articulation |
Bones Involved: Humerus (Capitulum) Radius (Head) Ulna (Radial notch)
Classification: Pivot
Movements permitted: Pronation, supination
Axis: Oblique running through heads of radius and ulna
Ligaments: Annular ligament Quadrate ligament Oblique cord |
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Distal Radio-Ulnar Articulation |
Bones involved: Ulna (head) Radius (ulnar notch)
Classification: Pivot
Movements permitted: pronation, supination
Ligaments: Palmar and dorsal radio-ulnar ligaments
Articular disc present: "triangular ligament" |
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Middle Radio-Unar articulation |
Interosseous Membrane: Syndesmosis
Functions: divides forearm into ant/post compartments serves as attachments for muscles transmits forces from hand to shoulder
Fibers run mainly inferiorly from radius to ulna |
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Wrist Joint |
Bones Involved: Radius, articular disc of distal radio-ulnar joint Proximal row of carpals (except pisiform bone)
Classification: Condyloid
Movements permitted: Flexion, extension, radial and ulnar deviation, circumduction
Ligaments: Ulnar Collateral ligament (ulnocarpal ligament) Radial Collateral ligament (radiocarpal ligament) Dorsal radiocarpal ligament Palmar radiocarpal ligament Palmar ulnocarpal ligament Dorsal ulnocarpal ligament |
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Intercarpal Articulation |
Classification: Gliding
Ligaments: Dorsal Intercarpal Ligament Palmar Intercarpal Ligament Interosseous Ligament |
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Intermetacarpal Articulations |
Classification: Gliding
Ligaments: Dorsal/Palmar Intermetacarpal ligaments Interosseous
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Carpometacarpal Articulations |
Classification: Digits 2-5 - Gliding Thumb - Saddle
Ligaments: Dorsal/Palmar Carpometacarpal ligaments Interosseous |
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Metacarpo-Phalangeal Articulations (MP's) |
Classification: Condyloid
Ligaments: Palmar Metacarpophalangeal ligaments Med/Lat collateral Metacarpophalangeal ligaments Deep Transverse Metacarpal ligament |
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Interphalangeal Articulations |
Classification: Hinge
Ligaments: Palmar Interphalangeal ligament Medial/lateral collateral interphalangeal ligaments |
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Elbow Bursae |
Subcutaneous Olecranon: Lies posteriorly over olecranon
Subtendinous Olecranon: proximal to triceps brachii insertion
Radioulnar
Bicipitoradial: between biceps brachii tendon and radial tuberosity |
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Synovial Sheaths of Wrist (Palmar) |
Synovial sheaths allow free movement of tendons through carpal tunnel: FDS and FDP share a sheath (AKA Ulnar bursa) FPL has separate sheath (AKA Radial bursa) Synovial sheaths of FPL and 5th digit are continuous from the carpal tunnel
FCR has sheath but moves through own tunnel in flexor retinatculum
Palmaris Longus has no sheath |
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Synovial Sheaths of Wrist (Dorsal) |
Six compartments (Divided by extensor retinaculum) -EPB and APL have separate sheaths but share a comparment -ECRB and ECRL have separate sheaths but share a compartment -EPL has separate sheath and compartment -ED and EI share synovial sheath and compartment -ECU and EDM have separate sheaths and compartments |
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Digital Flexor Tendon Sheaths of Hand |
anterior to MP joints and extends to distal phalanges
fibrous arches and cruciate ligaments house the tendons and synovial sheaths (attached to palmar ligaments and to margins of phalanges)
Fibrous components: -annular ligaments (5 in fingers 2-5, 2 in thumb) -cruciate ligaments (3 in fingers 2-5) -one oblique ligament in thumb
Fibrous band functions: -acts as pulley system to maintain proper alignment of tendons to digit -prevents tendons from bowstringing -contributes to grip strength |
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Scapulothoracic Articulation |
Scapula glides over bony ribcage. Scapula and clavicle must move together. Initial 30 degrees of arm abduction may involve no scapular movement. Scapulo-humeral rhythm: Ratio of glenohumeral:scapular movement is 2:1
Scapula function: -gives the humeral head a stable base on which to move -maintain a favorable length-tension relationship for UE muscles -Allows UE to elevate greater than 90-120 degrees -adds 60 degrees to elevation of arm via upward rotation (occurring at SC and AC joints) |
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Shoulder bursae |
Subacromial (Subdeltoid) Infraspinatus Subscapular
Fibrous membrane lined with synovial membrane/fluid |
