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MSK > Upper Extremity Arthrology > Flashcards

Upper Extremity Arthrology Flashcards

1
Q

Shoulder Girdle

A

Manubrium, clavicle, scapula, and humerus

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2
Q

Sternoclavicular joint

A

Sellar synovial
Articular capsule: fibrous, synovial membrane
Articular disc
Costoclavicular L: from clavicle to 1st rib
Anterior sternoclavicular L.
Posterior sternoclavicular L.
Interclavicular L.: above manubrium from clavicle on one side to clavicle on the other

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3
Q

Acromioclavicular joint

A

Planar synovial
Between acromion of scapula and clavicle
Articular capsule: fibrous, synovial membrane
Articular disc
Acromioclavicular L.: from acromion to clavicle
Coracoclavicular L.: from coracoid process to clavicle; contains the trapezoid L. and conoid L.
Superior transverse scapular L.

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4
Q

Coracoclavicular L.

A

Part of the Acromioclavicular Joint
Trapezoid L.: nearly horizontal band from trapezoid line to coracoid process; lateral to conoid L.
Conoid L.: vertical, from conoid tubercle to coracoid process; medial to trapezoid L.

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5
Q

Glenohumeral joint

A 
Spheroidal synovial
Between glenoid cavity of scapula and head of humerus
Glenoid labrum
Articular capsule
Glenohumeral L.
Coracohhumeral L.
Transverse Humeral L.
Coracoacromial arch: coracoacromial L., acromion, coracoid process; prevents humerus from dislocating superiorly
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6
Q

Articular capsule of glenohumeral L.

A

Fibrous: allows passage for long head of biceps brachii T. and communication with subscapular bursa
Synovial membrane: allows communication with subscapular bursa

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7
Q

Bursae of glenohumeral joint

A

Subscapular

Subacromial

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8
Q

Glenohumeral L.

A

From glenoid labrum and supragenoid tubercle to anatomical neck of humerus

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9
Q

Coracohumeral L.

A

From coracoid process of scapula to anterior edge of greater tubercle of humerus

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10
Q

Transverse Humeral L.

A

From greater Humeral tubercle to lesser Humeral tubercle spanning the intertubercular groove

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11
Q

Where does dislocation of the glenohumeral joint normally occur?

A

Anteriorly and inferiorly due to coracoacromial arch

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12
Q

Elbow joint

A 
Ginglymus synovial
Between Humeral condole, trochlear notch of the ulna, and radial head
Articular capsule
Humeroulnar joint
Humeroradial joint
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13
Q

Humeroulnar joint

A

Trochlear notch of ulna raping around Humeral trochlea
Ulnar collateral L. Of the elbow: from medial Humeral epicondyle to the Coronoid process of the ulna and olecrenon; anterior, posterior, and oblique band

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14
Q

Humeroradial Joint

A

Humeral capitulum articulating with the fovea of the radial head
Radial collateral L.: from the lateral Humeral epicondyle to blend with the annular L. Of the radial head

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15
Q

Bursae of the elbow joint

A

limit friction
Olecrenon bursae
Subcutaneous bursa of the medial Humeral epicondyle
Subcutaneous bursa of the lateral Humeral epicondyle
Bursae of the aconeus
Bursa at origin of extensor Capri radialis brevis

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16
Q

Olecrenon bursae

A

Subtendinous olecrenon bursa: between triceps brachii T. And olecrenon
Intratendinous olecrenon bursa: inside triceps brachii T.
Subcutaneous olecrenon bursa: in the subcutaneous CT over the olecrenon

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17
Q

Radioulnar joint

A 
3 different articulation between radius and ulna
Compound joint
Proximal radioulnar joint
Middle radioulnar joint
Distal radioulnar joint
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18
Q

Proximal radioulnar joint

A

Trochoid synovial
Supination and pronation
Articular capsule
Annular L. From coronoid process of the ulna around the radial head to insert back on the ulna, holding the radial head in the radial notch

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19
Q

Middle radioulnar joint

A

Syndesmosis fibrous joint
Oblique cord: coronoid process of ulna and radial body
Interosseus membrane: between length of ulna and radius

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20
Q

Distal radioulnar joint

A

Trochoid synovial
Between head of ulna and ulnar notch of radius laterally and the articular disc inferiorly
Articular capsule

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21
Q

Radiocarpal (wrist) joint

A

Condylar synovial
Between the distal end of the radius, plus the articular disc of the distal radioulnar joint and the scaphoid, lunate, and triquetrum bones

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22
Q

Parts of the radiocarpal joint

A

Articular capsule
Articular disc of the distal radioulnar joint
Palmar radiocarpal L: two bands-one from the radius across the scaphoid to the lunate, the other from the radius to the capitate
Dorsal radiocarpal L.
Palmar ulnocarpal L.
Dorsal ulnocarpal L.
Radial collateral L. Of the wrist: from radial styloid process to scaphoid
Ulnar collateral L. Of the wrist: from ulnar styloid process to scaphoid

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23
Q

Intercarpal joints

A 
Planar synovial
Scapholunate
Lunotriquetrum
Pisotriquetrum
Pisohamate
Trapeziotrapezoid
Trapeziocapitate
Capitohamate
24
Q

Pisiform joint

A

Intercarpal joint
Pisiform with the anterior surface of the triquetrum
Pisohamate L.: between pisiform and hook of hamate; ulnar N. Goes under this

25
Q

Midcarpal joint

A

Sellar synovial

Between proximal and distal rows of carpal bones

26
Q

Carpometacarpal joint-1st

A 
Thumb
Sellar synovial
From trapezium to 1st metacarpal B. 
Articular capsule
Palmar carpometacarpal L.
Dorsal carpometacarpal L.
27
Q

Carpometacarpal joint-2nd-5th

A

Planar synovial
From distal row of carpal bones to 2nd-5th metacarpal Bs.
Articular capsule
Palmar carpometacarpal L.
Dorsal carpometacarpal L.
Pisometacarpal L.: 5th metacarpal and pisiform
Radiate carpal L.: from the capitate to the bases of metacarpal Bs.; only on palmar side

28
Q

Intermetacarpal joints

A 
Only 4
Planar synovial
Articular capsule
Dorsal intermetacarpal L.
Palmar intermetacarpal L.
Interosseus intermetacarpal L.: inside the joint spaces between bases
29
Q

Metacarpophalangeal joints

A

5
Condyloid synovial
Articular capsule
Palmar L. (Or plate): acts as a floor for where tendons will run
Medial collateral L.
Lateral collateral L.
Deep transverse metacarpal L.: transverse fibers joining the palmar L. Of the medial 4 metacarpophalangeal joints

30
Q

Bull Rider’s Thumb

A

Sprain of the lateral collateral L. And allusion of the lateral part of the proximal phalanx

31
Q

Skier’s Thumb or Game-keeper’s thumb

A

Laxity or rupture of either the medial collateral L. Or both collateral Ls. Of the 1st metacarpophalangeal joint

32
Q

1st interphalangeal joint

A 
Ginglymus synovial
Thumb
Articular capsule
Palmar L.
Medial collateral L.
Lateral Collateral L.
33
Q

Proximal interphalangeal joints

A 
4
Ginglymus synovial
Union between 2nd-5th proximal and intermediate phalanges
Articular capsule
Palmar L.
Medial collateral L.
Lateral collateral L.
34
Q

Distal interphalangeal joints

A 
4
Ginglymus synovial
Union between 2nd-5th intermediate and distal phalanges
Articular capsule
Palmar L.
Medial collateral L.
Lateral collateral L.
35
Q

Pectoral fascia

A

Pectoralis major M.
Continuous superiorly with deltoid fascia
Laterally with axillary fascia
Inferiorly with abdominal deep fascia

36
Q

Axillary fascia

A

Floor of axilla
Continually medially with pectoral fascia
Inferiorly with clavipectoral fascia

37
Q

Clavipectoral fascia

A

Deep to pectoral fascia and the pectoralis major M.
Extends inferiorly from the clavicle to invest the subclavius and pectoralis minor M. Before blending with axillary fascia
Costocoracoid membrane: clavipectoral fascia between the subclavius M. And pectoralis minor M.
Suspensory L. Of the axilla: clavipectoral fascia between pectoralis minor M. And axillary fascia, forms the axillary fossa

38
Q

Deltoid fascia

A

Covers deltoid M.

Continuous anteriorly with pectoral fascia and posteriorly with infraspinous fascia

39
Q

Supraspinous fascia

A

Extremely dense fascia overlying the supraspinatus M.

40
Q

Infraspinous fascia

A

Extremely dense fascia overlying the infraspinatus M.

41
Q

Deep cervical fascia

A

Goes around the subclavius muscle and ends at the clavicle

42
Q

Brachial fascia

A

Covers musculature of brachium

43
Q

Brachium fascia

A

Brachial fascia
Medial intermuscular septum
Lateral intermuscular septum

44
Q

Antebrachium (forearm) Fascia

A 
Antebrachial fascia
Interosseus membrane
Extensor retinaculum
Palmar Carpal L.
Flexor retinaculum
45
Q

Antebrachial fascia

A

Utilizes interosseus membrane to divide the antebrachium into a floor (anterior) and extensor (posterior) compartment

46
Q

Extensor retinaculum

A

Transverse focal thickening of antebrachial fascia
Holds the extensor tendons in position
Dorsal side

47
Q

Palmar Carpal L.

A

Focal thickening of antebrachial fascia, continuous with extensor retinaculum
Palmar side

48
Q

Flexor retinaculum

A

Actually a ligament (transverse carpal L.)
Deep and distal to the palmar carpal L.
Fibrous band
Palmar side

49
Q

Palmar aponeurosis

A

Thickened central region of palmar fascia
Superficial transverse metacarpal L.: base of palmar aponeurosis
Retinacula cutis
Medial fibrous septum
Lateral fibrous septum

50
Q

Dupuytren Contracture

A

Disease resulting in the shortening, thickening, and fibrosis of the palmar aponeurosis and palmar fascia
Leads to partial flexion of the 4th and 5th digits

51
Q

Dorsal fascia

A

Deep to subcutaneous fat on the dorsum of the hand

52
Q

Fibrous digital sheaths

A

Digital synovial sheaths

53
Q

Hypothenar

A

Hypothenar muscles

Little finger

54
Q

Central compartment of hand

A

Flexor tendons, lumbrical muscles, superficial palmar arterial arch, digital vessels and nerves

55
Q

Thenar

A

Thenar muscles

Thumb

56
Q

Adductor compartment of hand

A

Adductor pollicis M.

57
Q

Interosseus compartment of hand

A

Between the metacarpal Bs.

Contain the interossei Ms.

MSK (16 decks)

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