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Musculoskeletal > Anatomy of UE > Flashcards

Anatomy of UE Flashcards

0
Q

What side of humerus is the trochlea on?

A

Medial

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1
Q

What side of the humerus is the Capittulum on?

A

Lateral

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2
Q

What connects the Ulna to the radius proximally, medially, and distally?

A

Annular ligament; Interosseous membrance; Palmar radioulnar and dorsal radioulnar ligaments

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3
Q

Radial colateral ligament is where and protects from what motion?

A

From radius to the capittulem; varus stress

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4
Q

Ulnar collateral ligament is where and protects from what?

A

Trochlea to ulnar trochlea notch; valgus stress

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5
Q

Ulnar groove houses what nerve and is made up of what ligament?

A

Ulnar nerve; ulnar collateral ligament; UIlnar nerve is most likely due to compression with Osbornes fascia, forming the cubital tunnel

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6
Q

Brachiallis attaches to…

A

the coronoid process of the ulna

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7
Q

In order using your hand name to 5 wrist/finger flexors arising near the medial epicondyle…

A

Pronator teres, Flexor carpi radialis, palmaris longus, flexor carpi ulnaris, deep is flexor digitorum superficialis.

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8
Q

Finklesteins test?

A

For de Quarvaines tenosynovitis. Inflammation of the extensor pollicus brevis tendon, and abductor pollicus lungus. AKA game keepers thumb.

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9
Q

First row (proximal row) of carpal bones from lateral to medial?

A

Scaphoid, lunate, triquetrium, pisiform

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10
Q

Seconds row (distal) of carpal bones lateral to medial?

A

Trapezium, trapezoid, capitate, hamate

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11
Q

Closest carpal bone to the thumb metacarpal?

A

Trapezium

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12
Q

Most common fractured carpal bone?

A

Scaphoid; Also due to fractures, avascular necrosis can be a result and this can decrease supply to the proximal end.

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13
Q

How many IP joints are there at the 1 digit?

A

2

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14
Q

Deltoid is innervated by?

A

Axillarry Nerve c5,c6.

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15
Q

Supraspinatus and Infraspinatus are innervated by which nerve and roots?

A

Suprascapular nerve; c4-6

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16
Q

Teres Minor is innervated by which nerve?

A

Axillary nerve; c5-6

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17
Q

Teres major is innervated by which nerve?

A

Lower subscapular nerve; c6-7

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18
Q

Subscapularis is innervated by which nerve?

A

Subscapular nerve; c5-6

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19
Q

Pec major is innervated by which nerve?

A

Medial and lateral pectoral nerve; c5-t1

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20
Q

Corachobrachialis is innervated by which nerve?

A

Musculocutaneous; c6-7 (Flexion, adduction, IR)

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21
Q

Subclavius innervation?

A

Nerve to subclavius c5-6; steadies the clavicle in the SC joint

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22
Q

Pec Minor innervation

A

Medial and lateral pectoral nerves; c6-T1; draws scapula down and protraction, also assists in respiration

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23
Q

Serratus anterior innervation

A

Long thoracic nerve; c5-7; elevates ribs when shoulder is fixed

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24
Q

Levator Scapula, Rhomboid Major, Rhomboid minor innervation?

A

Dorsal Scapular nerve; c4-5

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25
Q

Latissimus Dorsi innervation

A

Thoracodorsal nerve; c6-8

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26
Q

Brachialis is innervated by?

A

Musculocutaneous c5-6; radial c7

27
Q

Triceps and anconeus innervation?

A

Radial nerve; c6-8

28
Q

Pronator Teres Innervation?

A

Median c6-7; weak elbow flexor, forearm pronation

29
Q

Flexor carpi radialis innervation?

A

median nerve c6-7; wrist flexion and radial deviation

30
Q

Flexor carpi ulnaris innervation?

A

Ulnar nerve; c7-t1; Wrist flexion and ulnar deviation

31
Q

Palmaris Longus innervation?

A

Median Nerve c7-8; weak elbow flexion; wrist: flexion tightens palmar aponeurosis.

32
Q

Flexor Digitorum Superficialis innervation?

A

Median c8,t1; Elbow: weak flexor; Wrist/MCP/PIP flexion of 2nd to 5th digit

33
Q

flexor digitorum profundus innervation

A

Median nerve c8, t1; ulnar nerve c8,t1; Wrist/MCP/PIP/DIP flexion of 2nd to 5th digits

34
Q

Flexor pollicus longus innervation?

A

Median c7-8; Wrist: flexion and radial deviation; CMC of thumb:flexion; MCP and IP of thumb: flexion

35
Q

Pronator Quadratus innervation?

A

Median c7-8; pronation

36
Q

Falling on outstretched hand causes what fracture?

A

Colles Fracture

37
Q

Carpal tunnel has a flexor retinaculum attached to what?

A

Scaphoid and Trapezium and pisiform and hook of hamate

38
Q

Thumb contributes to how much of the hands function?

A

40%

39
Q

Distal Radioulnar joint is what type of joint?

A

Uniaxial Pivot joint important for pronation and supination

40
Q

Radiocarpal joint is what type of joint?

A

Biaxial Ellipsoid joint between the radius and scaphoid and lunate; this is stabilized medially by the radial collateral ligament and the triangular-shaped disc on the ulna that articulates with the lunate and triquetrium

41
Q

What is the ration of weight load bearing between radius and ulna?

A

60:40 radius/ulna

42
Q

Does pisiform contribute to intercarpal motion?

A

No, the pisiform rests on the triquetrium and does not participate in intercarpal motion

43
Q

Medially the scaphoid, lunate and triquetrium articulate with which two carpal bones?

A

Capitate and Hamate

44
Q

Laterally the scaphoid articulates with which carpal bones?

A

Trapezoid and trapezium

45
Q

The scaphoid functions with which row during flexion?

A

Proximal

46
Q

The scaphoid functions with which row during extension?

A

Distal row of carpal bones

47
Q

Anterior dislocation of the lunate is common and can cause what?

A

Compression of the median nerve against the flexor retinaculum

48
Q

True of False: carpal bones heal poorly and may develop avascular necrosis

A

True

49
Q

Where does most of wrist extension take place?

A

Radiocarpal joint

50
Q

Where does most of wrist flexion take place?

A

Midcarpal joint

51
Q

What is the most active muscle during grasping?

A

Extensor carpi radialis brevis; stabilizes the wrist

52
Q

What are the two major wrist flexors?

A

Flexor carpi radialis and flexor carpi ulnaris

53
Q

What are the prime movers of radial deviation?

A

ECRL and Brevis, FCR

54
Q

Prime movers of ulnar deviation?

A

ECU and FCU

55
Q

Radial artery travels medially or laterally on the forerarm?

A

Begins at the cubital fossa and travels medially to the radial styloid process on its way to the hand

56
Q

Radial pulse lies lateral to which muscle tendon?

A

FCR

57
Q

Supracondylar fracture at the elbow can casue injury to which artery?

A

Radial

58
Q

What type of joints are the carpal metacarpal joints?

A

Plane synovial joints

59
Q

Metacarpal phalangeal joints (MCP) joints are what type of joint?

A

Condyloid joint

60
Q

The collateral ligaments of the MCP joints become tight in which motion?

A

Flexion of digits

61
Q

What type of joints are IP joints?

A

Uniaxial hinge joints

62
Q

Wrist extension to what degree(s) is optimal for hand function?

A

20-30 deg

63
Q

Radial nerve damage effects the ability to maintain functional wrist position and what else?

A

release of object

64
Q

Median nerve injury in the hand affects what?

A

Flexion of the fingers on the radial side and precision grip

65
Q

Ulnar nerve damage in the hand can affect?

A

flexion of the ulnar side digits and power grip (holding hammer grip)

Musculoskeletal (5 decks)

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