Muscles of the Upper Limb Flashcards Preview

Hugh's MD1 Musculo-Skeletal > Muscles of the Upper Limb > Flashcards

Flashcards in Muscles of the Upper Limb Deck (111)
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1

What is the origin of the brachialis muscle?

Ant aspect of the distal half of the shaft of the humerus

1

What is the insertion of the FDS?

Four tendons, one in each middle phalanx

2

What is the insertion of the supraspinatus muscle?

Superior facet of the greater tubercle of the humerus

3

What is the attachment of the long head of the triceps?

Infraglenoid tubercle

4

What is the origin of flexor pollicis longus?

Shaft of radius and adjacent interosseous membrane

5

What is the origin of FDS

Medial epicondyle

Both ulna and radius

5

Why is their a bare patch in the synovial sheaths of the FDS and FDP tendons?

That space gives rise to the lumbrical muscles

6

Where does the FCR insert?

2nd and 3rd metacarpals

6

Where does ECRL and B insert?

2nd and 3rd metacarpals posteriorly

6

What happens when both the ECRL and B, and FCR contract?

Radial deviation

7

Which flexors on the forearm insert onto metacarpals?

Flexor carpi radialis

Flexor carpi ulnaris

8

What are the names of the muscles that make up the hypothenar muscle?

(... One For All)

Opponens digiti minimi

Flexor digiti minimi

Abductor digiti minimi

9

What is the origin of the coracobrachialis muscle?

Coracoid process of the scap

10

What movements does the teres major allow?

Adduction 

Medial rotation

10

What are the muscles that make up the thenar muscle?

(All For One And...)

Abductor pollicis brevis

Flexor pollicis brevis

Opponens pollicis

Adductor pollicis``

12

What is the insertion and origin of the subclavius?

Origin: 1st Rib

Insertion: Inferior surface of clavicle

12

What is the function of the subclavius?

Stabilise the clavicle

12

What movement does the brachioradialis muscle allow?

Flexion of elbow

13

What makes up the superficial palmar arterial arch?

It's started by the ulnar artery and finished by the radial artery

14

What is the origin and course of the long head of the bicep?

Originates in the supraglenoid tubercle

Traverses over the head of the humerus, within the capsule and out through the bicepital groove

15

What is the insertion of the deltoid?

Deltoid tuberosity on humerus

16

Where does the FDS lie in relation to the FCU and FCR?

Underneath

16

What is the configuration of the tendons of the FDS?

Tendons of the 3rd and 4th fingers ontop of the tendons of the 2nd and 5th fingers.

16

Where do the extensors of the thumb originate?

Shaft of ulnar and adjacent interosseous membrane

16

What are the borders of the palmar aponeurosis?

Flexor aproneurosis proximally

Slips into the bases of the each of the 4 fingers

 

17

Describe the insertion of the flexor carpi ulnaris

Pisiform bone is in its tendon on its way to the 5th metacarpal

18

Which of the lumbrical muscles are dual bellied?

3rd and 4th fingers

19

What is the attachment of the lateral head of the tricep?

Linear attachment on the posterior shaft of the humerus

21

Which nerves supplies the serratus anterior?

Long thoracic nerve

21

What is the course of the lumbrical muscle?

From the FD tendon on the metacarpals

Around the radial side of the 4 fingers

Onto the tendon of the ED

22

What bones make up the pectoral girdle?

Scapula and Clavicle

23

What are the origins of the deltoid?

Spine of the scapula

Acromium 

Clavicle

24

How does the pattern of FDS and FDP's tendons differ in their traversal of the carpal tunnel

FDP's tendon line is a line of 4, deep to the tendons of FDS which lie in pairs, 2 ontop of each other. 

25

What is the extra origin of the FCU?

Subcutaneous border of the ulna

25

What happens when ECU and FCU both contract?

Ulnar deviation

25

What divides the extensor tendons?

Divisions that come down from the extensor retinaculum

26

Where does the serratus anterior run?

Beneath the scapula

26

What type of sheaths by the FDS and FDP have in the hand?

Synovial and fibrous

27

What is the insertion of the pectoralis minor?

Coracoid process

28

What are the muscle attaching the pectoral girdle to thoracic wall anteriorly?

Pectoralis major

Pectoralis minor

Subclavius

Serratus Anterior

29

Where does the brachioradialis muscle insert?

Styloid process of the radius

30

What does the adductor pollicis muscle share a plane with?

The deep neurovascular plane

31

Which fibres of the pectoralis major overlie the other fibres?

Clavicular fibres overlie the sternocostal

31

Which nerve supplies the deltoid muscle?

Axillary

32

What is the function of the pectoralis minor?

Stabilise scapula

Accessory muscle of respiration

32

What are the three muscles of the deep posterior compartment of the forearm?

Anconeus

Supinator

Extensor indicis

33

Describe the EDM muscle belly?

It shares its proximal belly with ED

35

What is the origin of the teres major?

Posterior surface of the inferior angle of the scapula

36

7 layers of the palmar aspect of the hand, go!

Skin and palmaris brevis

Palmar aponeurosis

Thenar and hypothenar muscle

Neurovascular plane

Tendon of the distal flexors and lumbricals

Adductor pollicis and neurovascular plane

Interosseous muscles and metacarpals

37

What movements happen at the elbow?

Flexion/Extension

Supernation/Pronation

37

What is the name of the deepest head of the triceps?

Medial head

39

What are the muscles that attaches the scapula to the humerus?

Teres major

Deltoid

Supraspinatus

Infraspinatus

Subscapularis

Teres minor

40

What are the muscles that connect the pectoral girdle to trunk posteriorly?

Trapezius

Rhomboids

Latissimus dorsi

Levator scapulae

42

What are the 5 muscles of the superficial, flexor compartment of the forearm?

Pronator teres

Flexor carpi radialis

Palmaris longus

Flexor digitorum superficialis

Flexor carpis ulnaris

43

Where do the hypothenar and thenar muscle arise from?

Flexor retinaculum and carpal bones

44

What are the attachment of the flexor retinaculum?

Scaphoid

Trapezium

Hook of Hamate

Pisiform

45

How can you tell f/e from ab/add of the thumb?

F/E is in the same plane as the hand

46

What happens when the long thoracic nerve is damaged?

Winged scapula

48

What is the insertion of the infraspinatus muscle?

Middle facet of the greater tubercle of the humerus

49

How often is the extensor indicis identified?

Rarely

51

What is the insertion of the subscapulae muscle?

The lesser tubercle of the humerus

53

Where does the medial head of the triceps originate?

Posterior shaft of the humerus

53

What is the insertion of FPL?

Distal phalanx of the thumb

55

When does the biceps supinate?

When the elbow is flexed

56

What movement does the palmar interosseous muscle allow?

Palmar interosseous muscle ADduct (PAD)

57

What is the origin of the adductor pollicis?

Shaft of the 3rd metacarpal

59

What is the insertion of the brachialis muscle?

Coranoid process of the ulnar

60

Where does the pectoralis major muscle insert?

Lateral lip of the bicepital groove

61

What is the extra origin of the FDS?

Radius

62

Around which side of the phalanges does the lumbrical tendon run?

Radial side

64

What is the insertion of the teres major?

Medial lip of the intertubercular sulcus of the humerus

65

How can you find the superficial palmar arterial arch?

It runs on the distal plane of the out stretched thumb

66

What is the course of the anconeus muscle?

Ula to the lateral epicondyle

68

What is the name of the two superficial heads of the triceps?

Lateral 

Long

68

Which superficial flexors have more than one origin?

Pronator teres

Flexor digitorum superficialis

Flexor carpi ulnaris

69

Name the nine superficial extensors of the forearm

Brachioradialis

Extensor carpi radialis longus

Extensor carpi radialis brevis

 

Extensor carpi ulnaris

Extensor digitorum

Extensor digiti minimi

 

Extensor pollicis longus

Extensor pollicis brevis

Abductor pollicis longus

 

71

What is the function of the serratus anterior?

Protraction the scapula

73

Which muscle initiates abduction of the humerus?

Supraspinatus

74

Which superficial extensors originate at the lateral supracondylar ridge?

Brachioradialis

Extensor carpi radialis longus

75

Are there more dorsal or palmar interosseous muscles?

Dorsal

76

Where does the triceps insert?

Olecranon of ulnar

78

What is the origin of the serratus anterior?

Lateral aspect of ribs 1-8

78

What does the short head of the bicep originate?

Coracoid process of scap

79

T/F the palmar aponeurosis covers the hypothenar muscle but not the thenar muscle

False, it doesn't cover either of them 

80

What is the origin of the FDP?

Shaft of ulna and adjacent interosseous membrane

82

Describe the palmar longus?

It has a small belly and long tendon > heading towards extinction

82

What movement do the dorsal interosseous muscle allow?

Dorsal interosseous muscles ABduct (DAB)

84

What is the insertion of the teres minor?

The inferior facet of the greater tubercle of the humerus

86

Which superficial extensors originate from the lateral epicondyle?

Extensor carpi radialis brevis

Extensor digitorum

Extensor digiti minimi

Extensor carpi ulnaris

87

What is best way to look for the supinator muscle?

Look for the muscle that obsures the proximal shaft of the radius

88

What is the insertion of ECU?

5th metacarpal

89

What runs between the two heads of the supinator?

The neural supply of the posterior compartment of the forearm

90

Which muscles tendons run between the superficial palmar arterial arch and the adductor pollicis?

The FDS and FDP tendons

91

Where do the interosseous muscle insert?

ED tendon

93

Which muscle laterally rotate the humerus?

Infraspinatus 

Teres minor

94

What are the major actions of the pectoralis major?

Horizontal adduction

Medial rotation of the humerus

Accessory muscle of respiration

95

What is the course of the EPL's tendon?

It goes the "long" way - through the extensor retinaculum and back to the thumb

96

What are the 3 deep muscles in the flexor compartment?

Pronator quadratus

Flexor digitorum profundus

Flexor pollicis longus

97

T/F Dupuytren's contractor is due to a thickening of the deep flexor tendons

False, it's a thickening of the palmar aponeurosis

98

Where the origins of the pectoralis major?

Clavicular

Sternocostal

99

Where does the serratus anterior insert?

Vertebral border of the scapula

100

What are the muscles of the anterior compartment of the arm?

Coracobrachialis

Biceps

Brachialis

102

What is the origin of the pectoralis minor?

Ribs 3-5

103

What are the movement of the thumb?

Flexor/extend

Abduct/adduct

Opposition/reposition

 

104

What is the common origin of the flexors of the forearm?

Medial epicondyle

105

What is the insert of the coracobrachialis?

Mid humerus

106

What is the insertion of FDP?

Distal palanx of 4 fingers - tendons bursts through the tendon of the FDS

108

Which muscles form the medial border of the forearm?

FCU

ECU

109

What movement do the lumbrical muscles allow?

Wave bye bye

110

Where does pronator teres insert?

Mid point of the shaft of the radius

 

111

Where does the ED insert?

Tendons for fingers 2 to 4 posteriorly, each finger gets 3 tendons, one for each phalanx