Term
| Five articulations of the shoulder |
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Definition
Glenohumeral joint,...Sternoclavicular joint....Acromioclavicular joint .....
Coracoclavicular joint..... Scapulothoracic joint |
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Term
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Definition
| articulation bt the sternum, first rib cartilage and the proximal end of the clavicle....Provides major axais of rotation for movements of the clavicle and scapula....Modified ball and socket ..... Frontal, transvers and some forward and sagital plane motion allowed |
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Term
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Definition
| Articulation of the acromion process of the scapula with the distal end of the clavicle.....Irregular diarthrodial joint...Allows limited rotation in 3 planes |
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Term
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Definition
| The coracoid process of the scapula and the inferior surface of the clavicle are bound together by the coracoclavicular ligament....permits little movement |
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Definition
| Region bt the anterior scapula and the thoracic wall...scapula moves in both sagittal and frontal planes with the trunk |
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Definition
| ball and socket joint....most freely moving joint in the human body |
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Term
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Definition
| small sacks that secrete synovial fluid and reduce friction bt layers of collagenous tissues...shoulder is surrounded by several bursae |
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Term
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Definition
| stabilize the scapula....moves the shoulder by positioning the glenohumeral joint appropriatly |
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Term
| Muscles of the glenohumeral joint |
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Definition
| flexion...extension...abduction ..... adduction... medial rotation..... lateral rotation |
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Term
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Definition
| the moment arm for the entire arm segment with respect to the shoulder is the perpindicular distance bt the weight vector @ the arms center of gravity and the shoulder..... Although the weight of the arm is only 5% of the human bodys weight, the length of a horizontally extended arm creates a large segment of moment arms.... thats why u cant lift alot of weight doing side raises |
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Term
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Definition
| load is reduced when the arm is flexed..... Muscles that attach to the humerus at small angles with respect to the glenoid fossa contribute primarily to the shear as opposed to compression at the joint .... rotator cuff-Serve the important role of stabilizing the humerus in the glenoid fossa against the contractions of powerful muscles that might otherwise dislocate the joint other function is rotation |
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Term
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Definition
| loose structure of the glenohumeral joint enables extreme mobility but provides little stability....factors influencing this...Inadequate size of the glenoid fossa, anterior tilt of the glenoid fossa, inadequate retroversion of the humeral head, deficits of the rotator cuff muscles, after 1 you are suseptable to more |
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Term
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Definition
| common in people who typically engage in forceful overhead movements, throwing, tennins serve... when rotator cuff tendons become stretched and weakened they cannot perform their normal function of holding the humeral head in the glenoid fossa....Test, hold the arms out straight and push down |
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Term
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Definition
| caused by forceful rotational movements, throwing..... labrum tears,.. rotator cuff damage... biceps tendon tears... calcifications of soft tissues... degenerative changes in articular surfaces,...bursitis |
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Term
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Definition
| common in volleyball players.... involves denervation of the infraspinatus, rotator cuff muscle.... loss in strength during external rotation of the humerus..... attributed to the repeated stretching of the nerve during the serving motion |
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Term
| Elbow structure, 3 articulations |
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Definition
| humeroulnar..... humeroradial,..... Proximal radioulnar |
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Term
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Definition
| hinge joint of the elbow... movements are flexion and extension |
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Term
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Definition
| Immediately lateral to the humeroulnar joint...gliding joint.... resticts motion to the sagital plane |
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Term
| proximal radioulnar joint |
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Definition
| pivot joint, forearm pronation and supination as the radius rolls medially and laterally over the ulna...also the middle radioulnar and the distal radioulnar |
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Term
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Definition
| flexion, extension, pronation and supination... 3 radioulnar articulations proximal, distal, and middle, ....proximal and distal are pivot joints, middle joint is a syndensmosis joint |
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Term
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Definition
| elbow regularly sustains large loads during daily activity..... extensor moment arm is shorter than the flexor moment arm due to triceps head attaching closer to the elbow joint center than biceps and the brachialis |
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Term
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Definition
| caused by forced hyperextension... stretch of the ulnar collateral ligament which may rupture anteriorly |
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Term
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Definition
| continued hyperextension can cause humeroulnar dislocation... caused by falling on an outstretched hand or twisting.... bc of the large number of nerves and blood vessels passing through the elbow, dislocations are particularly dangerous |
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Term
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Definition
| involves inflamation and/or damage to tissues on the lateral side of the distal humerus... often refured to as tenis elbow bc of its high incidence among tennis players |
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Term
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Definition
| inflammation and or damage to the medial aspect of the distal humerus... "little leagers elbow" often occurs in pitchers who try to learn the curve caused by the twisting rotation |
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Term
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Definition
| composed of teh radiocarpal and intercarpal articulations.... most motion occurs @ the radiocarpal joint...... Allows movements in the saggital plane and frontal plane as well as circumduction |
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Term
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Definition
| flexion..extenion...hyperextenion... hyperextension...radial deviation, movements of the hand toward the thumb side of teh arm.... ulnar deviation.... movement of the hand toward the little finger side |
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Term
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Definition
| fingers are feferred to as digits one through five with the first digit being the thumb |
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Term
| carpometacarpal and intermetacarpal joints |
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Definition
| only true saddle joint.... classic saddle joint in the thumb..... others are classified as gliding joints |
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Term
| metacarpophalangeal joints |
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Definition
| condyloid joints... bt the rounded distal heads of the metacarpals and the concave proximal ends of the phalanges .... from the knuckles of the hand |
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Term
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Definition
| the proximal and distal joints of the fingers and the single interphalangeal joint of the thumb are all hinge joints |
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Term
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Definition
| carpometacarpal joint of the thumb allows a large range of movement bc its a true saddle joint.... motion at the carpometacarpal joints two through four is slight due to constraining ligaments |
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Term
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Definition
| metacarpophalangeal joints 2-5 allow flexion, extension, abduction, adduction and circumduction...... metacarpophalangeal joint of the thumb acts as a hinge joint...... interphalangeal acticulations are classic hinge joints |
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Term
| injuries to the wrist and hand |
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Definition
| wrist sprains and strains....strain, injury to the muscle or tendon....sprain, inj to the ligament... caused from falling on hyperextended wrist |
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Term
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Definition
| any swelling compresses the median nerve that passes through the tunnel.... symptoms include pain and numbness along the median nerve, clumsiness of finger function, and eventually weakness and atrophy to the muscles that supply the median nerve |
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