Joints of Upper Extremity Flashcards Preview

Musculoskeletal > Joints of Upper Extremity > Flashcards

Flashcards in Joints of Upper Extremity Deck (35)
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1
Q

Ligaments of the AC joint?

A
  1. AC ligament

2. coracoclavicular (conoid + trapezoid)

2
Q

acromioclavicular

joint dislocation plus coracoclavicular ligament broken

A

shoulder separation

3
Q

humeral head dislocated from the glenoid cavity

A

shoulder dislocation

4
Q

What classification when AC and coracoclavicular ligaments are stretched but still intact?

A

Tossy 1

5
Q

What classification when the AC ligament is ruptured with subluxation of the joint?

A

Tossy II

6
Q

What classification when the ligaments are disrupted with complete dislocation of AC joint?

A

Tossy III, piano key sign when holding weights

7
Q

Glenoid cavity deepened by this so humeral head sits more than 1/3 of its surface into glenoid cavity?

A

glenoid labrum

8
Q

Humeral head kept in its cavity by what muscles?

A

rotator cuff

9
Q

Weak point for dislocation of glenohumeral joint?

A

Inferiorly on articular capsule

10
Q

Runs from the greater tubercle to the lesser tubercle of humerus, bridging over the synovial sheath for the tendon of the biceps

A

transverse humeral ligament

11
Q

Pectoralis major, deltoid, coracobrachialis, and biceps brachii are shoulder what?

A

flexors

12
Q

latissimus dorsi and deltoid are shoulder what?

A

extensors

13
Q

supraspinatus muscle is a shoulder?

A

abductors (first 15 degrees)

14
Q

pectoralis major, latissimus dorsi, and rotator cuff muscles are shoulder?

A

adductors

15
Q

subscapularis, teres major, and latissimus dorsi are shoulder?

A

medial rotators

16
Q

infrapsinatus and teres minor are shoulder what?

A

lateral rotators

17
Q

muscles that hold the head of humerus to the glenoid cavity?

A

rotator cuff muscles

18
Q

muscles that resist downward dislocation of the joint?

A

coracobrachialis, biceps, long head of triceps, and deltoid

19
Q

inflammation and calcification of the supraspinatus tendon, inflammation of the subacromial bursa. pain when 5-130 degrees abducted. “painful arc syndrome”, age 50+

A

calcific supraspinatus tendonitis (calcific sacpulohumeral bursitis)

20
Q

fibrosis and scarring in the articular capsule resulting from injuries around the joint, difficulty abducting arm

A

adhesive capsulitis of glenohumeral joint (frozen shoulder)

21
Q

damage to this nerve caused by glenohumeral joint dislocation

A

axillary nerve

22
Q

happens to baseball throwers, painful when throwing, may have popping sound

A

glenoid labrum tears

23
Q

Articulations of the elbow?

A

trochlea of humerus with trochlear notch of ulna, capitulum of humerus with head of radius

24
Q

ligament of elbow from lateral epicondyle to annular ligament of radius

A

radial collateral ligament

25
Q

ligament of elbow from medial epicondyle to coronoid process and olecranon of ulna, consists of 3 bands

A

ulnar collateral ligament

26
Q

chief flexors of the elbow?

A

brachialis, biceps brachii, brachioradialis

27
Q

chief extensors of the elbow?

A

triceps brachii

28
Q

subcutaneous most common due to repeated pressure and friction, (student’s, dart throwers’ minor’s elbow)

A

bursitis of the elbow

29
Q

forms a ring that encircles head of radius to the radial notch of the ulna, head of radius rotates within articular capsule

A

anular ligament

30
Q

supinator (when no resistance) and biceps (with resistance and elbow flexed)

A

supination

31
Q

pronator quadratus (primarily) and pronator teres (secondarily)

A

pronation

32
Q

Flex the wrist?

A

flexor carpi radialis and flexor carpi ulnaris

33
Q

extend the wrist?

A

extensor carpi radialis longus and brevis, extensor carpi ulnaris

34
Q

abduct (radially deviate) the wrist?

A

flexor carpi radialis, extensor carpi radialis longus and brevis, and abductor pollicis longus

35
Q

adduct (ulnar deviate) the wrist?

A

flexor and extensor carpi ulnaris