Arm Flashcards

1
Q

2 joints of shoulder + 2 additional joints giving movement

A
  1. scapulothoracic ( pseudojoint)
  2. glenohumeral (true joint)
  3. sternoclavicular
  4. acromioclavicular
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2
Q

6 movements of scap-throacic joint

A
  1. elevate
  2. depress
  3. retract
  4. protract
  5. up rotation (glenoid)
  6. down rotation
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3
Q

Origin, insertion, action, nerve of serratus ant.

A

Origin- ribs 1-9
Insert - vertbral scapula
Action - protract and up rotate scapula
Nerve - long thoracic

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4
Q

Origin, insertion, action, nerve of pec major

A

Origin- sternal and clavicular heads
Insert - intertubecular groove of humerus
Action - adduct, med rotate, flex arm
Nerve - med and lateral pectoral

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5
Q

Origin, insertion, action, nerve of pec minor

A

Origin- ribs 3-5
Insert - coracoid process
Action - protract and down rotate scapula
Nerve - med pectoral

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6
Q

Origin, insertion, action, nerve of trapezius

A

Origin- occipital bone and spinous process of C7-T12
Insert - spine of scapula, clavicle and acromion
Action - elevate or depress (depends on fibers) retract scapula
Nerve - CN11

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7
Q

Origin, insertion, action, nerve of latisimus dorsi

A

Origin- spinous process of T7-L5, illiac crest
Insert - intertubecular groove of humerus
Action - adducts, extends, med. rotates arm
Nerve - throaco-dorsal

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8
Q

position of rhomboid major and minor

A

minor on top

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9
Q

Origin, insertion, action, nerve of rhomboids

A

Origin- spinous process of C7-T5
Insert - vertebral border of scapula
Action - elevate, retract, down rotate scapula
Nerve - dorsal scapular

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10
Q

Origin, insertion, action, nerve of levator scapula

A

Origin- trans process of C1-3
Insert - vert angle of scapula
Action - elevates scapula
Nerve - dorso-scapular

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11
Q

2 movements of sternoclavicular joint

A

glides ant-post and sup-inf

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12
Q

ligaments of sternoclavicular joint (3)

A

ant. and post. sternoclavicular

interclavicular

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13
Q

movement of acromioclavicular joint

A

allows full shoulder elevation

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14
Q

intrinsic and extrinisic ligaments of acromioclavicular joint

A

intrinsic - acromioclavicular

extrinsic - coracoclavicular

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15
Q

movement of glenohumeral

A

all directions - circumduction

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16
Q

feature deepening glenoid fossa

A

glenoid labrum

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17
Q

intrinsic ligaments of glenohumeral joint

A

sup., med., inf. glenohumeral

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18
Q

extrinsic ligaments of glenohumeral joint

A

coracoacromial, and coracoclavicular

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19
Q

5 muscles of rotator cuff

A
  1. supraspinatus
  2. infraspinatus
  3. teres minor
  4. subscapularis
  5. teres major
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20
Q

Origin, insertion, action, nerve of supraspinatus

A

Origin- supraspinous fossa
Insert - greater tuberosity
Action - abduction, lateral rotation
Nerve - suprascapular

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21
Q

Origin, insertion, action, nerve of infraspinatus

A

Origin- infraspinous fossa
Insert - greater tuberosity
Action - lateral rotation
Nerve - suprascapular

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22
Q

Origin, insertion, action, nerve of teres minor

A

Origin- lateral border of scapula
Insert - greater tuberosity
Action - lateral rotation
Nerve - axillary

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23
Q

Origin, insertion, action, nerve of subscapularis

A

Origin- subscapular fossa
Insert - lesser tuberosity
Action - medial rotation
Nerve - upper and lower subscapular

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24
Q

Origin, insertion, action, nerve of teres major

A

Origin- inf. scapula
Insert - intertuberosity groove
Action - extends, adducts, lateral rotates arm
Nerve - lower subscapular

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25
Q

Anterior rami of brachial plexus

A

C5-T1

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26
Q

Origin, insertion, action, nerve of deltoid

A

Origin- clavicle, spine of scapula
Insert - deltoid tuberosity
Action - abduction, flexion and extension
Nerve - axillary

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27
Q

Borders of axilla

A

medial: rib and serattus ant.
lat: intertubecular sulcus
ant: pec maj and min
post: scapula and muscles

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28
Q

Terminal branches of BPlex (5)

A
  1. median
  2. radial
  3. ulnar
  4. axillary
  5. musculocutaneous
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29
Q

3 BPlex cords

A

medial, lateral, post.

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30
Q

3 trunks of BPlex

A

sup., middle, inf

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31
Q

Motor innervation of musculocutaneous

A

ANT upper arm

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32
Q

Motor innervation of median nerve

A

Ant forearm (except FCU and 1/2 FDP), thumb, lat. half of lumbricals

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33
Q

Motor innervation of ulnar

A

!/2 FDP, hypothenar, thumb adductor, medial lumbricals

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34
Q

motor innervation of radial nerve

A

all post. muscles of upper and lower arm

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35
Q

motor innervation of axillary

A

teres min, deltoid

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36
Q

path of blood to arm

A

brachiocephalic>subclavian>axillary>brachial>radial or ulnar>palmar arches

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37
Q

3 parts of axillary

A

1 - subclavian to pec min
2 - under pec min
3 - pec min to teres maj

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38
Q

branches off axillary 1

A

superior thoracic

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39
Q

branches off axillary 2

A

thoracoacromial

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40
Q

branches off axillary 3

A

circumflex and supscapular

41
Q

2 superficial veins and their sides

A
  1. cephalic - lat

2. basilic - med

42
Q

type and movement of humero-ulnar joint

A

hinge joint - flex/extend

43
Q

type and movement of radio-ulnar joint

A

pivot joint - allows supination

44
Q

type and movement of humero-radial joint

A

no load- pivots around

45
Q

carrying angle

A

angle b/w ulna and vert - more in women

46
Q

3 ligaments of elbow and movement restricted

A
  1. medial collateral - valgus
  2. lateral collateral - varus
  3. anular - keeps radius in place
47
Q

3 muscles of anterior arm

A

biceps, brachialis, coracobrachialis

48
Q

Origin, insertion, action, nerve of biceps

A

Origin- long head - superior glenoid, short - coracoid
Insert - radial tuberosity
Action - flexion and supination of elbow, flex shoulder
Nerve - musculocutaneous

49
Q

Origin, insertion, action, nerve of coracobrachialis

A

Origin- coracoid process
Insert - humerous
Action - shoulder flexion
Nerve - musculocutaneous

50
Q

Origin, insertion, action, nerve of brachialis

A

Origin- humerous
Insert - ulna
Action - flexion of elbow
Nerve - musculocutaneous

51
Q

muscles of post arm

A

triceps

52
Q

Origin, insertion, action, nerve of triceps

A

Origin- inf. glenoid (long head) humerus (others)
Insert - ulna
Action - extension of elbow
Nerve - radial

53
Q

borders of cubital fossa

A

sup: line b/w condyles
lat: pronator teres
med: brachioradialis

54
Q

Content of cubital fossa lat to med

A

TAN- biceps tendon, brachial art., medial N

55
Q

contact points of radius and ulna (2)

A

sup - radial head with radial notch of ulna

inf - ulnar head with ulnar notch of radius

56
Q

6 hand joints

A
  1. distal interphlangeal
  2. proximal interphalangeal
  3. metacarpophalangeal
  4. carpometacarpal
  5. midcarpal
  6. radiocarpal
57
Q

8 carpal bones

A

scaphoid, lunate, triquetrum, pisiform, hamate, capitate, trapezoid, trapezium

58
Q

joint type of carpometacarpals and movement permitted

A

planar - gliding movements

59
Q

joint type of interphalageal and movement permitted

A

hinge - flex/extend

60
Q

joint type of metacarpophalangeal and movement permitted

A

condyloid - flex/extend, abd/add

61
Q

reference line for finger abductiond

A

3rd finger

62
Q

2 muscle compartments of forearm

A
  1. anterior - flexor/pronator

2. post. - ext./supinator

63
Q

4 muscles of layer 1 of ant. compartment

A
  1. pronator teres
  2. flexor carpi radialis
  3. palmaris longus
  4. flexor carpi ulnaris
64
Q

Origin, insertion, action, nerve of pronator teres

A

Origin- medial epicondyle
Insert - radius
Action - pronate
Nerve - median

65
Q

Origin, insertion, action, nerve of flexor carpi radialis

A

Origin- medial epicondyle
Insert - 2nd metacarpal
Action - flex and abd hand
Nerve - median

66
Q

Origin, insertion, action, nerve of palmaris longus

A

Origin- medial epicondyle
Insert - palmar fascia
Action - flex and add hand
Nerve - median

67
Q

Origin, insertion, action, nerve of flexor carpi ulnaris

A

Origin- medial epicondyle
Insert - pisiform and hamate
Action - flex hand (weak)
Nerve - ulnar

68
Q

Muscle of layer 2 of ant. forearm

A

flexor digitorum superficialis

69
Q

Origin, insertion, action, nerve of flexor digitorum superficialis

A

Origin- medial epicondyle
Insert - 4 middle phalanges
Action - flex PIP and MCP flex wrist (weak)
Nerve - median

70
Q

2 muscles of layer 3 of ant. forearm

A
  1. flexor digitorum profundus

2. flexor pollicus longus

71
Q

Origin, insertion, action, nerve of flexor digitorum profundus

A

Origin- ulna
Insert - distal 2-5 phalanges
Action - flex DIP, flex wrist (weak)
Nerve - 1/2 median, 1/2 ulnar

72
Q

Origin, insertion, action, nerve of flexor pollicus longus

A

Origin- radius
Insert - distal thumb
Action - flex thumb,
Nerve - median

73
Q

muscle of layer 4 of ant. compartment

A

pronator quadratus

74
Q

Origin, insertion, action, nerve of pronator quadratus

A

Origin- ulna
Insert - radius
Action - pronates
Nerve - median

75
Q

2 arteries of forarm

A
  1. radial

2. ulnar>common interosseous

76
Q

4 compartments of hand and function

A
  1. hypothenar - intrinsic muscles - controls little finger
  2. thenar - intrinsic muscles for thumb
  3. interossus - intrinsic muscles for fingers
  4. central - long tendons of fingers
77
Q

content of carpal tunnel

A

4 FDS tendons
4 FDP tendons
1 FPL tendon
median nerve

78
Q

thenar muscles (3)

A
  1. flexor pollicis brevis
  2. abductor pollicic brevis
  3. opponens pollicis
79
Q

hypothenar muscles (3)

A
  1. flexor digiti minimi
  2. abductor digiti minimi
  3. opponens digiti minimi
80
Q

2 ligaments of digital sheaths

A
  1. annular - cover tendons

2. cruciate - close joint spaces

81
Q

Origin, insertion, action, nerve of lumbricals

A

Origin- FDP tendon
Insert - proximal phalages of 4 fingers
Action - flexes MCP and ext IPs
Nerve - lateral-median, medial-ulnar

82
Q

2 interossei muscles and #

A
  1. palmar (3)

2. dorsal (4)

83
Q

Origin, insertion, action, nerve of palmar interossus

A

Origin- metacarpal
Insert - phalanges
Action - adduct (PAD)
Nerve - ?

84
Q

Origin, insertion, action, nerve of dorsal interossus

A

Origin- metacarpal
Insert - phalanges
Action - abduct (DAB)
Nerve - ?

85
Q

Muscles of post. compartment from lateral epicondyle of humerous (6)

A
  1. brachioradialis
  2. extensor digitorum
  3. extensor digiti minimi
  4. ext. carpi ulnaris
  5. ext. carpi radialis longus
  6. ext. carpi radialis brevis
86
Q

Origin, insertion, action, nerve of brachioradialis

A

Origin- lateral epicondyle of humerous
Insert - distal end of radius
Action - elbow flex in mid-pronation
Nerve - radial

87
Q

Origin, insertion, action, nerve of extensor digitorum

A

Origin- lateral epicondyle of humerous
Insert - 4 fingers
Action - finger and wrist extension
Nerve - radial

88
Q

Origin, insertion, action, nerve of extensor digiti minimi

A

Origin- lateral epicondyle of humerous
Insert - extensor expansion of minimi
Action - finger extension
Nerve - radial

89
Q

Origin, insertion, action, nerve of ext. carpi ulnaris

A

Origin- lateral epicondyle of humerous
Insert - base of 5th metacarpal
Action - wrist ext. and add.
Nerve - radial

90
Q

Origin, insertion, action, nerve of ext. carpi radialis longus

A

Origin- lateral epicondyle of humerous
Insert - base of 2nd metacarpal
Action - wrist ext. and abd.
Nerve - radial

91
Q

Origin, insertion, action, nerve of ext. carpi radialis brevis

A

Origin- lateral epicondyle of humerous
Insert - base of 3rd metacarpal
Action - wrist ext. and abd.
Nerve - radial

92
Q

5 outcropping muscles of post. arm

A
  1. abductor pollicis longus
  2. ext. pollicis longus
  3. ext. pollicis brevis
  4. supinator
  5. extensor inidicis
93
Q

Origin, insertion, action, nerve of abductor pollicis longus

A

Origin- ulna and radius
Insert - base of 1st metacarpal
Action - abd. thumb
Nerve - radial

94
Q

Origin, insertion, action, nerve of ext. pollicis longus

A

Origin- ulna
Insert - distal phalanx of thumb
Action - thumb ext
Nerve - radial

95
Q

Origin, insertion, action, nerve of ext. pollicis brevis

A

Origin- radius
Insert - prox phalanx of thumb
Action - thumb ext
Nerve - radial

96
Q

Origin, insertion, action, nerve of supinator

A

Origin- ulna
Insert - radius
Action - supinates
Nerve - radial

97
Q

Origin, insertion, action, nerve of extensor inidicis

A

Origin- ulna
Insert - 1st finger
Action - 1st finger ext
Nerve - radial

98
Q

borders of snuff box

A

EPL, APL, EPB

99
Q

significance of snuff box

A

floor is scaphoid