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Semester 2-MSK > Origins Of Upper Limb Muscles > Flashcards

Origins Of Upper Limb Muscles Flashcards

1
Q

What is the origin of pectoralis major?

A

Clavicular head to clavicle

Sternocostal head to sternum and ribs

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2
Q

What is the origin of pectoralis minor?

A

Anterior surface of ribs 3-55

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3
Q

What is the origin of serratus anterior?

A

Upper 8 or 9 ribs

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4
Q

What is the origin of deltoid?

A

Spine of scapula

Acromion

Clavicle

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5
Q

What is the origin of teres major?

A

Posterior surface of inferior angle of scapula

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6
Q

What is the origin of supraspinatus?

A

Supraspinous fossa of scapula

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7
Q

What is the origin of infraspinatus?

A

Infraspinous fossa of scapula

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8
Q

What is the origin of subscapularis?

A

Subscapular fossa of scapula

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9
Q

What is the origin of teres minor?

A

Posterior surface of scapula, adjacent to lateral border

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10
Q

What are the origins of trapezius?

A

Skull
Ligamentum nuchae
Spinous processes of C7-T12

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11
Q

What are the origins of latissimus dorsi?

A

Spinous processes of T6-T12
Iliac crest
Thoracolumbar fascia
Inferior 3 ribs

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12
Q

What is the origin of lavatory scapulae?

A

Transverse processes of C1-C4 vertebrae

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13
Q

What is the origin of rhomboid minor?

A

Spinous processes of C7-T1

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14
Q

What is the origin of rhomboid major?

A

Spinous processes of T2-T5

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15
Q

What is the origin of the long head of biceps brachii?

A

Supraglenoid tubercle of scapula

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16
Q

What is the origin of the short head of biceps brachii?

A

Coracoid process of scapula

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17
Q

What is the origin of coracobrachialis?

A

Coracoid process of scapula

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18
Q

What is the origin of brachialis?

A

Medial and lateral surfaces of humeral shaft

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19
Q

What is the origin of the long head of triceps brachii?

A

Infraglenoidal tubercle

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20
Q

What is the origin of the medial head of triceps brachii?

A

From humerus, inferior to radial groove

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21
Q

What is the origin of the lateral head of triceps brachii?

A

From humerus, superior to radial groove

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22
Q

What is the origin of pronator teres?

A

Medial epicondyle

Coronoid process of ulna

23
Q

What is the origin of flexor carpi radialis?

A

Medial epicondyle

24
Q

What is the origin of palmaris longus?

A

Medial epicondyle

25
Q

What is the origin of flexor carpi ulnaris?

A

Medial epicondyle

26
Q

What is the origin of the humeroulnar head of flexor digitorum superficialis?

A

Medial epicondyle

27
Q

What is the origin of the radial head of flexor digitorum superficialis?

A

Anterior border of radius

28
Q

What is the origin of flexor digitorum profundus?

A

Ulnar and interosseus membrane

29
Q

What is the origin of flexor pollicis longus?

A

Anterior surface of radius and surrounding interosseus membrane

30
Q

What is the origin of pronator quadratus?

A

Anterior surface of ulna

31
Q

What is the origin of brachioradialis?

A

Lateral supraepicondylar ridge of humerus

32
Q

What is the origin of extensor carpi radialis brevis?

A

Lateral epicondyle of humerus

33
Q

What is the origin of extensor carpi radialis longus?

A

Lateral supracondyle ridge of humerus

34
Q

What is the origin of extensor digitorum?

A

Lateral epicondyle

35
Q

What is the origin of extensor digiti minimi?

A

Lateral epicondyle

36
Q

What is the origin of extensor carpi ulnaris?

A

Lateral epicondyle

37
Q

What is the origin of anconeus?

A

Lateral epicondyle

38
Q

What is the origin of supinator?

A

Lateral epicondyle

Posterior surface of ulna

39
Q

What is the origin of abductor pollicis longus?

A

Posterior surfaces of ulna, radius and interosseus membrane

40
Q

What is the origin of extensor pollicis brevis?

A

Posterior surface of radius and interosseus membrane

41
Q

What is the origin of extensor pollicis longus?

A

Posterior surface of ulna and interosseus membrane

42
Q

What is the origin of extensor indicis?

A

Posterior surface of ulna and interosseus membrane (distal to extensor pollicis longus)

43
Q

What is the origin of opponens pollicis?

A

Tubercle of trapezium and flexor retinaculum

44
Q

What is the origin of abductor pollicis brevis?

A

Tubercles of scaphoid and trapezium and flexor retinaculum

45
Q

What is the origin of flexor pollicis brevis?

A

Tubercle of trapezium and flexor retinaculum

46
Q

What is the origin of opponens digiti minimi?

A

Hook of hamate and flexor retinaculum

47
Q

What is the origin of abductor digiti minimi?

A

Pisiform and flexor carpi ulnaris tendon

48
Q

What is the origin of flexor digiti minimi brevis?

A

Hook of hamate and flexor retinaculum

49
Q

What are the origins of the lumbricals?

A

Each originates from tendon of flexor digitorum profundus

50
Q

What is the origin of dorsal interossei?

A

Lateral and medial surfaces of metacarpals

51
Q

What is the origin of palmar interossei?

A

Lateral and medial surfaces of metacarpals

52
Q

What is the origin of palmaris brevis?

A

Palmar aponeurosis and flexor retinaculum

53
Q

What is the origin of adductor pollicis?

A

One head from third metacarpal

Other head from capitate

Adjacent areas of second and third metacarpals

Semester 2-MSK (23 decks)

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