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MSK Upper Flashcards

1
Q

Pectoralis major

A

no nerve
Adducts humerus (accessory muscle of breathing)
O: Clavicle and ribs 1-6
I: Upper humerus

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2
Q

Pectoralis minor

A

no nerve
Protracts scapula (accessory muscle of breathing)
O: Ribs 3-5
I: Scapula

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3
Q

Serratus anterior

A

no nerve
Protracts scapula (accessory muscle of breathing)
O: Ribs 1-8
I: Scapula

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4
Q

Trapezius

A

Accessory nerve - 11th CN
Upper: elevates scapula, Middle: retracts, Lower: depresses. Rotates the scapula
O: Skull, cervical and thoracic vertebrae
I: Clavicle and scapula

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5
Q

Latissumus dorsi

A

Thoracodorsal nerve
Extends scapula, adducts and medially rotates humerus
O: Lower thoracic vertebrae
I: Humerus - upper anterior

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6
Q

Levatator scapulae

A

Brachial Plexus
Elevates scapula
O: Upper cervical vertebrae
I: Scapula - medial border

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7
Q

Rhomboid major

A

Brachial Plexus
Retracts scapula
O: C7 and T1
I: Scapula - medial border

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8
Q

Rhomboid minor

A

Brachial Plexus
Retracts scapula
O: Thoracic vertebrae
I: Scapula - medial border

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9
Q

Deltoid

A

Axillary nerve
Abduction beyond 20°
O: Clavicle, acromion and spine of scapula
I: Deltoid tuberosity

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10
Q

Teres major

A

no nerve
Medial rotation and adduction of shoulder
O: Posterior surface and inferior lateral border of scapula
I: Anterior humerus

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11
Q

Supraspinatus

A

no nerve
First 20° of abduction
O: Supraspinous fossa
I: Greater tubercle - superior

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12
Q

Infraspinatus

A

no nerve
Lateral rotation
O: Infraspinous fossa
I: Greater tubercle - middle

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13
Q

Teres minor

A

Axillary nerve
Lateral rotation
O: Lateral border of scapula
I: Greater tubercle - inferior

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14
Q

Subscapularis

A

no nerve
Medial rotation
O: Subscapular fossa
I: Lesser tubercle

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15
Q

Triceps brachii

A

Radial nerve
Extends elbow
O: Long head - infraglenoid tubercle of the scapula, Medial head - posterior humerus (distal to radial groove), Lateral head - posterior humerus (proximal to radial groove)
I: Olecranon of ulna

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16
Q

Biceps brachii

A

Musculocutaneous nerve
Flexion and supination of the elbow, weak flexor shoulder joint
O: Short head - coracoid process, Long head - supraglenoid tubercle
I: Radial tuberosity

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17
Q

Brachialis

A

Musculocutaneous nerve
Flexes elbow
O: Distal anterior humerus
I: Ulna tuberosity

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18
Q

Coracobrachialis

A

Musculocutaneous nerve
Weak flexer of shoulder
O: Coracoid process
I: Medial aspect of middle humerus

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19
Q

Pronator teres

A

Median nerve
Pronation of wrist
O: Medial epicondyle
I: Lateral surface of radius

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20
Q

Flexor carpi radialis

A

Median nerve
Flexes and abducts the wrist
O: Medial epicondyle
I: 2nd metacarpal

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21
Q

Palamris longus

A

Median nerve
Flexes and abducts the wrist
O: Medial epicondyle
I: Fascia of the palm

22
Q

Flexor carpi ulnaris

A

Ulnar nerve
Flexes and adducts the wrist
O: Medial epicondyle
I: 5th metacarpal

23
Q

Flexor digitorum superficialis

A

Median nerve
Flexor of digits
O: Humerus, ulna and radius
I: 4 tendons, two slips of a tendon insert on either side of middle plalanx of digits 2-5

24
Q

Flexor digitorum profundus

A

Lateral half: median nerve Medial half: ulnar nerve
Flexes the digits
O: Ulna, interosseous membrane
I: 4 tendons, palmar aspect of distal phalanx of digits 2-5

25
Q

Flexor pollicis longus

A

Median nerve
Flexes the thumb
O:Radius, interosseous membrane
I: 1 tendon inserts on ditstal phalanx of thumb

26
Q

Profunder quadratus

A

Median nerve
Pronates distal radioulnar joint
O: Ulna
I: Radius

27
Q

Flexor pollicis brevis

A

Median nerve (reaccurant)
Flexes thumb
O: Carpal bones
I: Proximal phalanx

28
Q

Abductor pollicis brevis

A

Median nerve (reaccurant)
Abducts thumb
O: Carpal bones
I: Proximal phalanx, laterally

29
Q

Opponens pollicis

A

Median nerve (reaccurant)
Opposes thumb
O: Carpal bones
I: 1st metacarpal

30
Q

Adductor pollicis

A

Ulnar nerve
Adducts thumb
O: 3rd metacarpal
I: Proximal phalanx

31
Q

Flexor digiti minimi

A

Ulnar nerve (deep)
Flexes little finger
O: Carpal bones
I: Proximal phalanx

32
Q

Abductor digiti minimi

A

Ulnar nerve (deep)
Abducts little finger
O: Carpal bones
I: Proximal phalanx

33
Q

Opponens digiti minimi

A

Ulnar nerve (deep)
Opposes little finger
O: Carpal bones
I: 5th metacarpal

34
Q

Lumbricals (4 total, digits 2-5)

A

Lateral (2,3): median nerve, Medial (4,5): ulnar nerve
Flex MCP joints and extend IP joints
O: Arise from FDP tendons, travel on lateral aspects of digits 2-5
I: Dorsal aspects of digits 2-5

35
Q

1st palmar interosseous

A

Ulnar nerve (deep)
Adducts fingers
O: Medial side of 2nd metacarpal
I: Medial aspect of 2nd proximal phalanx

36
Q

2nd palmar interosseous

A

Ulnar nerve (deep)
Adducts fingers
O: Lateral side of 4th metacarpal
I: Lateral aspect of 4th proximal phalanx

37
Q

3rd palmar interosseous

A

Ulnar nerve (deep)
Adducts fingers
O: Lateral side of 5th metacarpal
I: Lateral aspect of 5th proximal phalanx

38
Q

1st dorsal interosseous

A

Ulnar nerve (deep)
Abducts fingers
O: Medial side 1st metacarpal and lateral side 2nd metacarpal
I: Lateral aspect of 2nd proximal phalanx

39
Q

2nd dorsal interosseous

A

Ulnar nerve (deep)
Abducts fingers
O: Medial side 2nd metacarpal and lateral side 3rd metacarpal
I: Lateral aspect of 3rd proximal phalanx

40
Q

3rd dorsal interosseous

A

Ulnar nerve (deep)
Abducts fingers
O: Medial side 3rd metacarpal and lateral side 4th metacarpal
I: Medial aspect of 3rd proximal phalanx

41
Q

4th dorsal interosseous

A

Ulnar nerve (deep)
Abducts fingers
O: Medial side 4th metacarpal and lateral side 5th metacarpal
I: Medial aspect of 4th proximal phalanx

42
Q

Brachioradialis

A

Radial nerve
Weak flexor of elbow
O: Humerus, proximal to lateral epicondyle
I: Distal radius

43
Q

Extensor carpi radialis longus

A

Radial nerve
Extends and abducts the wrist
O: Lateral epicondyle of humerus
I: 2nd metacarpal

44
Q

Extensor carpi radialis brevis

A

Radial nerve
Extends and abducts the wrist
O: Lateral epicondyle of humerus
I: 3rd metacarpal

45
Q

Extensor digitorum

A

Radial nerve
Extends the digit
O: Lateral epicondyle of humerus
I: 4 tendons insert into dorsal aspects of the fingers (2-5)

46
Q

Extensor digit minimi

A

Radial nerve
Extends the little finger
O: Lateral epicondyle of humerus
I: Dorsum of little finger

47
Q

Extensor carpi ulnaris

A

Radial nerve
Extends and adducts the wrist
O: Lateral epicondyle of humerus
I: 5th metacarpal

48
Q

Supinator

A

Radial nerve
Supinates forearm and hand
O: Humerus
I: Radius

49
Q

Abductor pollicis longus

A

Radial nerve
Abducts the thumb
O: Radius, ulna, interosseous membrane
I: 1st metacarpal

50
Q

Extensor pollicis brevis

A

Radial nerve
Extends the thumb
O: Radius, interosseous membrane
I: Proximal phalanx

51
Q

Extensor pollicis longus

A

Radial nerve
Extends the thumb
O: Ulna, interosseous membrane
I: Distal phalanx

52
Q

Extensor indicis

A

Radial nerve
Extension of index
O: Ulna, interosseous membrane
I: Dorsum of index finger

Phase 1 extra stuff (5 decks)

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