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MBBS Anatomy > Muscle Origin & Insertion - Upper Limb > Flashcards

Muscle Origin & Insertion - Upper Limb Flashcards

1
Q

What is/are the origin(s) and insertion(s) of the Trapezius?

A

Origin: Occipital protuberance and spinous process C7-T12

Insertion: Lateral 1/3 of clavicle, acromion and spine of scapula

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2
Q

What is/are the origin(s) and insertion(s) of the Levator scapulae?

A

Origin: Transverse processes of C1-C4

Insertion: Upper medial border of the scapula

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3
Q

What is/are the origin(s) and insertion(s) of the Rhomboid minor?

A

Origin: Spinous professes of C7-T1

Insertion: medial edge of the scapula at the spine

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4
Q

What is/are the origin(s) and insertion(s) of the Rhomboid major?

A

Origin: Spinous processes of T2-T5

Insertion: medial edge of scapula below the spine

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5
Q

What is/are the origin(s) and insertion(s) of the Deltoid?

A

Origin: Clavicle and scapula (opposite trapezius)
Insertion: Deltoid tuberosity of the humerus

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6
Q

What is/are the origin(s) and insertion(s) of the Latissimus Doris?

A

Origin: spinous process of T6-L5, sacrum, iliac crest and ribs 10-12

Insertion: Floor of intertubercular sulcus

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7
Q

What is/are the origin(s) and insertion(s) of the Pectoralis major?

A

Origin: Has a clavicular head that attaches at the clavicle and a sternocostal head which attaches to the anterior surface of the sternum and the first 7 costal cartilages

Insertion: Lateral lip of the intertubucular sulcus

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8
Q

What is/are the origin(s) and insertion(s) of the pectoralis minor?

A

Origin: Anterior surface of ribs 3-5

Insertion: Coracoid process

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9
Q

Which are the “fan shaped” muscles of the shoulder?

A

Latissimus Doris and the pectoralis major

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10
Q

What are the muscles of the anterior shoulder?

A

Pectoralis minor, subclavius, coracobrachialis and serratus anterior

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11
Q

What is/are the origin(s) and insertion(s) of the subclavius?

A

Origin: First rib (at costal cartilage)

Insertion: Middle 1/3 of clavicle

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12
Q

What is/are the origin(s) and insertion(s) of the Coracobrachialis?

A

Origin: coracoid process

Insertion: medial aspect of the humerus

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13
Q

What is/are the origin(s) and insertion(s) of the serratus anterior?

A

Origin: lateral surfaces of ribs 1-8/9

Insertion: medial border of scapula (costal surface)

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14
Q

Wha are the muscles of the rotator cuff?

A

Supraspinatus, infraspinatus, teres minor

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15
Q

What is/are the origin(s) and insertion(s) of teres minor?

A

Origin: lateral infraspinous fossa

Insertion: inferior facet of the greater tubercle of the humerus

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16
Q

What is/are the origin(s) and insertion(s) of teres major?

A

Origin: posterior surface of scapula near inferior angle (inferior to the teres minor)

Insertion: Medial lip of the intertubercular sulcus

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17
Q

What is/are the origin(s) and insertion(s) of the supraspinatus?

A

Origin: supraspinous fossa of scapula

Insertion: superior facet of the greater tubercle of humerus

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18
Q

What is/are the origin(s) and insertion(s) of the infraspinatus?

A

Origin: infraspinous fossa of scapula

Insertion: Middle facet of the greater tubercle of the humerus

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19
Q

What are the biarticular muscles and what does this mean?

A

Triceps and biceps and this means that they cross 2 joints

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20
Q

What is/are the origin(s) and insertion(s) of the biceps brachii?

A

Origin: two heads, supra glenoid tubercle (long) and coracoid process (short)

Insertion: radial tuberosity of forearm

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21
Q

What is/are the origin(s) and insertion(s) of the brachialis?

A

Origin: anterior aspect of the humerus

Insertion: ulnar tuberosity and anterior surface of Coronado process of ulna

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22
Q

What are the muscles of the anterior arm?

A

Coracobrachialis

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23
Q

What are the muscles of the arm?

A

Biceps, brachialis

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24
Q

What are the muscles of the posterior arm?

A

Triceps

25
Q

What is/are the origin(s) and insertion(s) of the triceps?

A

Origin: infraglenoid tubercle of the scapula (long head), posterior surface of humerus superior to the radial groove (lateral head) and inferior to the radial groove (medial head)

Insertion: olecranon of ulna

26
Q

What muscles are in the superficial layer of the anterior forearm?

A

Flexor carpi ulnaris
Palmaris longus (sometimes not present)
Flexor carpi radialis
Pronates teres

27
Q

What is/are the origin(s) and insertion(s) of the flexor carpi ulnaris?

A

Origin: medial epicondyl of humerus and olecranon on the posterior border of ulna

Insertion: pisiform, then to hamate and base of 5th metacarpal

28
Q

What is/are the origin(s) and insertion(s) of the palmaris longus?

A

Origin: Medial epicondyle of humerus

Insertion: continuous with palmar aponeurosis

29
Q

What is/are the origin(s) and insertion(s) of the flexor carpi radialis?

A

Origin: Medial epicondyle of humerus

Insertion: bases of metacarpals 2 and 3

30
Q

What is/are the origin(s) and insertion(s) of the pronator teres?

A

Origin: medial epicondyle of humerus and coronoid process of ulnar

31
Q

What muscles are part of the intermediate layer of the anterior forearm?

A

Flexor digitorum superficialis

32
Q

What is/are the origin(s) and insertion(s) of the Flexor digitorum superficialis?

A

Origin: Medial epicondyle of humerus and coronoid process and oblique line of radius

Insertion: Margins of middle phalanges (2-5)

33
Q

What muscles make up the deep layer of the anterior forearm?

A

Flexor digitorum profundus, flexor policis longus and pronator quadratus

34
Q

What is/are the origin(s) and insertion(s) of the flexor digitorum profundus?

A

Origin: anterior surfaces of ulna and the interosseus membrane

Insertion: base of distal phalanges of digits 2-5

35
Q

What is/are the origin(s) and insertion(s) of the flexor policis longus?

A

Origin: anterior surfaces of radius and the interosseus membrane

Insertion: base of the distal phalanx of digit 1

36
Q

What is/are the origin(s) and insertion(s) of the pronator quadratus?

A

Origin: anterior surface of distal part of ulna (only deep muscle that doesn’t originate off of the interosseus membrane)

Insertion:anterolateral surface of distal radius

37
Q

What muscles make up the superficial layer of the posterior forearm?

A 
Brachioradialis
Extensor carpi radialis longus 
Extensor carpi radialis brevis 
Extensor digitorum
Extensor digiti minimi 
Extensor carpi ulnaris 
Anconeus
38
Q

What is/are the origin(s) and insertion(s) of the brachioradialis?

A

Origin: lateral supraepicondylar ridge
Insertion: lateral surface of distal radius (does not cross wrist)

39
Q

What is/are the origin(s) and insertion(s) of the extensor carpi radialis longus and brevis?

A

Origin: lateral supraepicondylar ridge (longus) and lateral epicondyle (longus and brevis)

Insertion: base of metacarpal 2 (longus and brevis) and 3 (brevis)

40
Q

What is/are the origin(s) and insertion(s) of the extensor digitorum?

A

Origin: lateral epicondyle

Insertion: extensor hoods of digits 2-5

41
Q

What is/are the origin(s) and insertion(s) of the extensor digiti minimi?

A

Origin: lateral epicondyle

Insertion: extensor hood of digit 5

42
Q

What is/are the origin(s) and insertion(s) of the extensor carpi ulnaris?

A

Origin: lateral epicondyle

Insertion: base of metacarpal 5

43
Q

What is/are the origin(s) and insertion(s) of the anconeus?

A

Origin: lateral epicondyle

Insertion: olecranon and posterior surface of ulna

44
Q

What muscles make up the deep layer of the posterior forearm?

A 
Supinator
Abductor pollicis longus
Extensor pollicis brevis
Extensor pollicis longus
Extensor indicus
45
Q

What is/are the origin(s) and insertion(s) of the supinator?

A

Origin: lateral epicondyle (superficial) and ulna (deep part)

Insertion: oblique line of radius

46
Q

What is/are the origin(s) and insertion(s) of the abductor pollicis longus?

A

Origin: posterior surfaces of radius and ulna and interosseus membrane

Insertion: lateral side of metacarpal 1

47
Q

What is/are the origin(s) and insertion(s) of the extensor pollicis longus and brevis?

A

Origin: posterior radius (brevis), posterior ulna (longus) and interosseus membrane (both)

Insertion: first phalanx of digit 1 (brevis) and distal phalanx of digit 1 (longus)

48
Q

What is/are the origin(s) and insertion(s) of the extensor indicus?

A

Origin: posterior ulna and interosseus membrane

Insertion: extensor hood of digit 2

49
Q

What are the anterior extrinsic muscles of the hand?

A

Flexor digitorum superficialis

Flexor digitorum profundus

50
Q

What are the posterior extrinsic muscles of the hand?

A

Extensor pollicis longus

Extensor pollicis brevis

51
Q

What are the intrinsic hand muscles?

A 
Palmaris brevis
Thenar muscles
Hypothenar muscles
Adductor pollicis 
Lumbricals 
Interossei
52
Q

What is/are the origin(s) and insertion(s) of the palmaris brevis?

A

Origin: palmaris brevis

Insertion: dermis of medial margin of hand

53
Q

What is/are the origin(s) and insertion(s) of the thenar muscles?

A

Origins: Flexor retinaculum, trapeziums and scaphoid

Insertion: flexor and abductor insert at the base of the proximal phalanx and extensor hood (abductor pollicis brevis)

Opponens inserts along the radial side of the first metacarpal

54
Q

What is/are the origin(s) and insertion(s) of the hypothenar muscles?

A

Origins: Hook of hamate, flexor retinaculum (opponens digiti minimi and flexor digiti minimi brevis), pisiform (abductor digiti minimi)

Insertion: Flexor and abductor insert at the base of the proximal phalanx and extensor hood

Opponens inserts along the ulnar side of the fifth metacarpal

55
Q

Which are the thenar muscles?

A

Opponens pollicis
Flexor pollicis brevis
Abductor pollicis brevis

56
Q

Which are the hypothenar muscles?

A

Opponens digiti minimi
Flexor digiti minimi brevis
Abductor digiti minimi

57
Q

What is/are the origin(s) and insertion(s) of the adductor pollicis?

A

Origin: transverse head from shaft of metacarpal 3, oblique head from capitate and bases of metacarpal 2 and 3

Insertion: base of proximal phalanx and extensor hood

58
Q

What is/are the origin(s) and insertion(s) of the lumbricals?

A

Origin: tendon of the flexor digitorum profundus

Insertion: extensor hoods

59
Q

What is/are the origin(s) and insertion(s) of the interossei?

A

Origin: shaft of the metacarpals

Insertion:extensor hoods and base of first phalanx

MBBS Anatomy (9 decks)

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