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CHA 101 > Labs III and IV > Flashcards

Labs III and IV Flashcards

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1
Q

biceps brachii (OIA)

A

O: short head-coracoid process (lat.), long head-supraglenoid tubercle (med)
I: radial tuberosity (proximal, ant)
A: flex supinated forearm, supinates flexed forearm

anterior, flexor, 2 headed muscle of arm, most superficial

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2
Q

Biceps Brachii (NB)

A

N: musculocutaneous nerve (BBC)
A: Brachial artery

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3
Q

Coracobrachialis(OIA)

A

O: coracoid process
I: medial shaft of humerus
A: flexion, AD of arm

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4
Q

Coracobrachialis (NB)

A

N: musculocutaneous, pieces through
B: brachial artery

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5
Q

Brachialis (OIA)

A

O: anterior surface of humerus (distal, inferior)
I: coronoid process of ulna
A: flexion of the forearm

anterior, flexor, strongest flexor of the forearm

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6
Q

Brachialis (NB)

A

N: musculocutaneous nerve
B: muscular branches of the brachial and the recurrent radial artery

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7
Q

Triceps brachii (OIA)

A

O: long head-infraglenoid tubercle of scapula (inferior to glenoid fossa), lateral head-posterior of humerus (above radial groove), medial head- posterior of humerus, below radial groove
I: olecranon of ulna
A: extension of forearm and extension of arm (long head only)

posterior, extensors (pronators)

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8
Q

Triceps Brachii (NB)

A

N: radial nerve
B: deep brachial artery, superior ulnar collateral artery

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9
Q

Pronator Teres (OIA)

A

O: medial epicondyle, coronoid process of ulna
I: lateral side of middle radius
A: pronation and flexion of forearm

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10
Q

Pronator Teres (NB)

A

N: median nerve
B: Branches of brachial, radial and ulnar arteries

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11
Q

flexor carpi radialis (OIA)

A

O: medial epicondyle
I: 2nd metacarpal
A: flexion and AB of hand

anterior of forearm, flexor, superficial layer

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12
Q

Flexor carpi radialis (NB)

A

N: median nerve
B: Anterior/posterior recurrent ulnar artery, radial artery

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13
Q

palmaris longus (OIA)

A

O: medial epicondyle
I: palmar aponerosis
A: flexion of hand, tighten flexor aponerosis (grip)

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14
Q

Palmaris longus (NB)

A

N: median nerve
B: ulnar artery

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15
Q

flexor carpi ulnaris (OIA)

A

O: medial epidondyle
I: pisiform, hamate, 5th metacarpal
A: flexion and AD of hand

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16
Q

flexor carpi ulnaris (NB)

A

N: ulnar nerve
B: ulnar artery

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17
Q

flexor digitorum superficialis (OIA)

A

O: medial epicondyle of the humerus
I: middle phalanx of digits 2-5
A: flexion at PIP joint, flexion at MCP joint, flexion of wrist

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18
Q

flexor digitorum superficialis (NB)

A

N: median nerve
B: Ulnar artery, radial artery, median artery

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19
Q

flexor pollicis longus (OIA)

A

O: The middle 1/2 of the anterior surface of the radius and the adjacent interosseus membrane
I:distal phalanx of thumb (digit 1)
A: flexion of distal phalanx of digit 1

anterior compartment of forearm, flexor, lateral, deep layers

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20
Q

flexor pollicis longus (NB)

A

N: median nerve
B: Anterior interosseous artery

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21
Q

flexor digitorum profundus (OIA)

A

O: Proximal half of anterior surface of ulna, interosseous membrane
I: distal phalanx of digits 2-5
A: flexion of DIP, PIP, MCP, and wrist (make a fist)

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22
Q

flexor digitorum profundus (NB)

A

N: ulnar (med half of digits 4-5) median (lateral half of digit 2-3)
B: Ulnar, common interosseous, ulnar collateral, ulnar recurrent, anterior interosseous, median arteries

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23
Q

Pronator quadratus (OIA)

A

O: distal ulna
I: distal radius
A: pronation of forearm

Square shape, deep layer (on bone)

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24
Q

Pronator quadratus (NB)

A

N: Median
B: Anterior interosseous artery

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25
Q

brachioradialis (OIA)

A

O: lateral supracondylar rudge (proximal to lateral epicondyle)
I: distal radius (anterior aspect)
A: flexion and supination of forearm

posterior compartment of forearm, flexor, most lateral

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26
Q

Brachioradialis (NB)

A

N: radial nerve (above elbow)
B: radial recurrent artery

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27
Q

extensor carpi radialis longus (OIA)

A

O: lateral supracondylar ridge
I: base of 2nd metacarpal
A: extension and AB of hand

posterior compartment of forearm, superficial layer

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28
Q

extensor carpi radialis longus (NB)

A

N: Radial Nerve
B: Radial Artery

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29
Q

extensor carpi radialis brevis (OIA)

A

O: lateral epicondyle
I: 3rd metacarpal
A: extension and AB of hand

posterior compartment of forearm; superficial layer

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30
Q

extensor carpi radialis brevis (NB)

A

N: radial (deep branch)
B: radial artery

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31
Q

extensor digitorum (OIA)

A

O: lateral epicondyle
I: extensor expansion of digits 2-5
A: extension of MP joint and wrist

posterior compartment of forearm; superficial layer

32
Q

extensor digitorum (NB)

A

N: radial (posterior interosseous)
B: Posterior interosseous artery, radial recurrent artery, anterior interosseous artery

33
Q

extensor carpi ulnaris (OIA)

A

O: lateral epicondyle of the ulna
I: 5th metacarpal
A: extension of hand, AD of hand

posterior compartment of forearm, superficial layer, most medial

34
Q

extensor carpi ulnaris (NB)

A

N: radial (posterior interosseous)
B: radial recurrent and posterior interosseous arteries,

35
Q

extensor digiti minimi (OIA)

A

O: lateral epicondyle
I: extensor expansion of digit 5
A: extension of MCP and IP joints of digit 5

posterior compartment of forearm, superficial layer, pinky finger

36
Q

extensor digiti minimi (NB)

A

N: radial (posterior interosseous)
B: Radial recurrent artery, anterior interosseous artery, posterior interosseous artery

37
Q

supinator (OIA)

A

O: lateral epicondyle of ulna
I: proximal 1/2 of radius (wraps around)
A: supination of forearm

posterior compartment of forearm, deep layer, most lateral

38
Q

supinator (NB)

A

N: radial (deep branch)
B: radial recurrent artery

39
Q

abductor pollicis longus (OIA)

A

O: ulna, radius, interosseous membrane
I: 1st metacarpal (base of thumb)
A: AD of digit 1, extension of digit 1 at CMC joint

posterior compartment of forearm, deep layer, “out cropper muscle”

40
Q

abductor pollicis longus (NB)

A

N: radial (posterior interosseous membrane)
B: interosseous branches of the ulnar artery

41
Q

extensor pollicis brevis (OIA)

A

O: radius, interosseous membrane
I: proximal phalanx of thumb
A: extension of MCP of digit 1

posterior compartment of forearm, deep layer

42
Q

extensor pollicis brevis (NB)

A

N: radial, posterior interosseous
B: posterior interosseous artery and perforating branches of the anterior interosseous artery

43
Q

extensor pollicis longus (OIA)

A

O: ulna, interosseous membrane
I: distal phalanx of digit 1
A: extensor of digit 1 at IP, CMC, MCP joints

posterior compartment of forearm; deep layer

44
Q

extensor pollicis longus (NB)

A

N: radial (posterior interosseous)
B: Posterior interosseous artery, anterior interosseous artery

45
Q

extensor indicis (OIA)

A

O: ulna and interosseous membrane
I: extensor expansion of digit 2
A: extension of digit 2

posterior compartment of forearm; most medial, deep layer, index finger

46
Q

draw the axillary artery

A

just stop and draw the axillary artery

47
Q

axillary nerve

A

around surgical neck of humerus, C5 C6 rami, posterior cord, motor to deltoid and trees minor, sensory to lateral part of shoulder, pairs with post humeral circumflex artery

48
Q

radial nerve

A

radial (lat) side of forearm, C5-T1, posterior cord, motor- posterior compartment of arm and forearm, triceps brachii; sensory- posterior arm, forearm, dorsum of hand (spec. thumb), pairs w deep brachial artery

49
Q

musculocutaneous nerve

A

pierces thru coracobrachialis muscle; C5-C7; anterior division, lateral cord, motor- coracobrachialis, anterior compartment of arm, sensory-lateral side of forearm

50
Q

median nerve

A

middle of limb; C6-T1; anterior divisions, lateral and medial cords, motor- anterior compartment of forearm, thumb, hand muscles (thru carpal tunnel); sensory- index and middle fingers, palmar surface of thumb, most of palm

51
Q

ulnar nerve

A

posterior to medial epicondyle; C8, T1; anterior division, medial cord, motor- flexor carpi ulnaris & digits 4 and 5 of flexor digitorum profundus; sensory- skin on ulnar (med) side, little finger, ulnar side of ring finger

52
Q

long thoracic nerve

A
  • branches off rami C5, C6, C7
  • innervates serratus anterior
  • helps with lateral rotation above 90 degrees
53
Q

dorsal scapular nerve

A
  • branch of rami C5

- innnervates levator scapula, rhomboid major and minor

54
Q

suprascapular nerve

A
  • branch of C5 rami and upper/superior trunk

- innnervates supraspinatus &infraspinatus

55
Q

lateral pectoral nerve

A
  • lateral cord branch
  • innervates pectoral major muscle
  • continues as musculocutaneous nerve
56
Q

medial pectoral nerve

A
  • branches off medial cord

- innervates pectoral major and minor muscle

57
Q

medial brachial cutaneous nerve

A
  • branch off medial cord

- sensory innervation to medial side of arm

58
Q

medial antebrachial cutaneous nerve

A
  • branch of medial cord

- sensory info to medial side of forearm

59
Q

upper, middle, lower subscapular

A
  • upper-> subscapularis
  • middle-> latissimus dorsi
  • lower-> subscapularis and teres major

branch from posterior cords

60
Q

humeroulnar joint

A
  • humerus and ulna
  • trochlear notch and trochlea of humerus
  • important for flexion and extension
61
Q

humeroradial joint

A
  • humerus and radius
  • radial head of radius & capitulum of humerus
  • important for pronation/supination
62
Q

proximal radioulnar joint

A
  • radial head and radial notch of ulna

- important for pronation/supination

63
Q

ulnar (med) & radial (lat) collateral ligaments of elbow

A

ulnar: big, triangle, wide; medial epicondyle-> ulna
radial: y shaped, lateral epicondyle-> annular ligament

  • restricts movement across humeroulnar joint
  • prevent side to side deviation
  • only permits flexion/extension
64
Q

annular ligament of elbow

A
  • ring shaped
  • anterior of ulna–> posterior of ulna
  • wraps around radial head
  • allows for pronation/supination
  • stabilizes radius and ulna
65
Q

Nursemaid’s elbow

A
  • partial dislocation of radial head

- head of radius out of annular ligament

66
Q

Sign of benediction

A

damage to median nerve-> no flexion of thumb, middle, and index finger, no MP and IP joint flexion

67
Q

flexor retinaculum

A
  • anterior of wrist
  • band that runs from trapezius and scaphoid to hamate and pisiform
  • holds flexors in place, prevents bowing out
  • median nerve runs deep
  • 9 tendens-> 4 FDS, 4FDP, 1 flexor pollicis longus
  • root of carpal tunnel
68
Q

ulnar (med) and radial (lat) collateral ligaments of wrist

A

ulnar: AB
radial: AD
of wrist

-keep carpal tunnel bones in place

69
Q

anatomical snuff box

A
  • triangle at root of thumb
  • tendons of AB pollicis longus (lat), extensor pollicis brevis (lat), extensor pollicis longus (med)
  • pain inside snuff box-> fracture to scaphoid (can’t see in x rays)
  • radial artery deep to snuff box
70
Q

extensor retinaculum

A
  • wrist tendon

- keeps extensor tendons in alignment

71
Q

cubital fossa

A
  • “elbow”, anterior, communicator between forearm and arm
  • made of brachioradialis (lat border), pronator trees (med border), horizontal like through epicondyles
  • deep- biceps brachii tendon and aponerosis, brachial artery, median nerve
  • superficial- cephalic vein, basilic vein, median cubital vein
72
Q

golfer’s elbow

A
  • aka medial epicondylitis

- flexor tendons enflamed and pull away from medial epicondyle

73
Q

tennis elbow

A
  • aka lateral epicondylitis

- muscle pulls away from lateral epicondyle due to inflammation

74
Q

wrist drop

A

high lesion of radial nerve-> loss of extension of wrist (still have flexion)

75
Q

carpel tunnel syndrome

A

inflammation of 9 flexor retinaculum tendons and compression of median nerve

  • pain w finger and wrist flexion/extension
  • burning sensation and numbness of palmar radial 3 1/2 digits
  • weakness and atrophy of thenar muscles
  • surgery to release pressure of flexor retinaculum –> careful not to cut median nerve

CHA 101 (14 decks)

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