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Anatomy E2 > Starred Lecture Items L10 > Flashcards

Starred Lecture Items L10 Flashcards

1
Q

where do flexors in the forearm come off of

A

medial epicondyle

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2
Q

where do extenders in the forearm come off of

A

lateral epicondyle

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3
Q

is lateral or medial epicondyle a bigger bump

A

medial epicondyle

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4
Q

what are the three fossas in the elbow

A

radial, coronoid, olecranon fossa

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5
Q

what muscle attaches to radial tuberosity

A

biceps brachii

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6
Q

is long head of tricepts bi or triarticular

A

tri

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7
Q

what attaches at the olecranon

A

triceps

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8
Q

missing degree of freedom for elbow

A

abduction and adduction

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9
Q

movements of elbow

A

flexion/extension
pronation/supination

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10
Q

normal carrying angle of the elbow

A

5-15 degrees (slightly out)

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11
Q

if carrying angle of elbow is >15 degrees when extended

A

cubitus valgus (makes an L) (deformity)

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12
Q

if carrying angle of elbow is <15 degrees when extended

A

cubitus varus (no L) (directed toward body instead of away)

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13
Q

carrying angle straightens out when…

A

pronating

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14
Q

three main ligaments in elbow

A

radial collateral (RCL)
ulnar collateral (UCL)
anular ligament of radius

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15
Q

what ligament resists elbow adduction and abduction

A

RCL and UCL

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16
Q

what elbow ligament is circular and what is its function

A

anular ligament of radius
keeps radial head in place

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17
Q

what three bands make up the UCL

A

anterior (cord) band
posterior (fan) band
oblique band

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18
Q

what ligament is superior to the anular ligament of the radius

A

radial collateral ligament

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19
Q

what is a tommy john surgery

A

surgery correcting a stretched out UCL (due to throwing)
drill holes into arm bones & put string/ synthetic ligament through them

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20
Q

names of “foosh” injuries regarding ulnar/radius

A

monteggia: ulnar fracture w radial head dislocation
galleazzi: radial fracture with distal radioulnar joint dislocation

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21
Q

how many joint capsules in the elbow

A

1

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22
Q

what does the brachial artery split into

A

radial and ulnar artery

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23
Q

parent structure for ulnar artery

A

brachial a

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24
Q

parent structure for radial artery

A

brachial a

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25
Q

what enervates muscles that flex elbow

A

musculocutaneous nerve

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26
Q

what enervates muscles that extend elbow

A

radial nerve

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27
Q

what bursae is found on the back of the elbow (3)

A

subtendinous bursa
intratendinous bursa
subcutaneous bursa

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28
Q

what three joints share the elbow joint capsula

A

humeroulnar joint
humeroradial joint
proximal radioulnar joint

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29
Q

main movement of humeroulnar joint

A

elbow flexion/extension

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30
Q

main movement of humeroradial joint

A

elbow flexion/ extension

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31
Q

what two joints make up the “elbow joint”

A

humeroulnar and humeroradial joints together

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32
Q

main movement of proximal radioulnar joint

A

pronation/supination of forearm

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33
Q

what kind of joint is the proximal radioulnar joint

A

synovial pivot joint

34
Q

borders of the cubital fossa (lateral, medial, superior)

A

lateral border: brachioradialis
medial border: pronator teres
superior border: line between medial/lateral epicondyles

35
Q

contents of the cubital fossa & acronym

A

bicep tendon
brachial artery
median nerve
lateral to medial=TAN

36
Q

is the radial and ulnar nerve in the triangle of the cubital fossa

A

no

37
Q

what vein do they draw blood from

A

medial cubital vein

38
Q

what two veins does the median cubital vein join/communicate

A

basilic/ cephalic veins

39
Q

what is a myotome

A

a spinal nerve that enervates a set of muscles

40
Q

elbow flexion muscles and myotome

A

biceps brachii
brachialis
brachioradialis (thumb up)
myotome: C6 flexion & C7 extension

41
Q

brachioradialis attachments

A

lateral supracondylar ridge of humerus
distal lateral radius

42
Q

what nerve enervates the brachioradialis and spinal level

A

radial nerve (C5, C6, C7)

43
Q

whats the only muscle that assists with flexing the elbow thats not enervated by the musculocutaneous nerve

A

brachioradialis

44
Q

brachioradialis actions

A

elbow flexion
assists in pronation and supination

45
Q

anconeus nerve ennervation and spinal level

A

radial nerve (C7, C8, T1)

46
Q

anconeus actions

A

stabilizes elbow joint
may abduct ulna during pronation

ASSISTS in extending forearm barely

47
Q

anconeus attachments

A

lateral epicondyle and lateral olecranon

48
Q

what keeps the ulnar and radius together

A

interosseous membrane

49
Q

radioulnar complex (3)

A

proximal radioulnar joint (PRUJ)
interosseous membrane
distal radioulnar joint (DRUJ)

50
Q

supinator action (& where)

A

supinates forearm at proximal radioulnar joint

51
Q

main supinators

A

biceps and supinator

52
Q

supinator attachments

A

P: lateral epicondyle of humerus
radial collateral and anular ligament, supinator fossa, ulna crest
D: radius (lateral, posterior, anterior surface)

53
Q

supinator nerve enervation and spinal level

A

radial nerve (PIN) C7 and C8*

54
Q

lateral epicondyle– radial nerve

A

extension

55
Q

pronator teres action and where

A

pronate the forearm (radioulnar joint)

56
Q

pronator teres attachments

A

medial epicondyle & coronoid process (common flexor tendon)
lateral radius

57
Q

what nerve enervates pronator teres and spinal level

A

median nerve C6 and C7*

58
Q

flexor carpi radialis actions

A

wrist flexion
radial deviation

59
Q

what nerve enervates flexor carpi radialis

A

median nerve C6 and C7*

60
Q

flexor carpi radialis attachments

A

medial epicondyle, base of 2nd and 3rd metacarpal

61
Q

palmaris longus attachments (not impt)

A

medial epicondyle (common flexor), palmar aponeurosis

62
Q

palmaris longus actions (not impt)

A

tenses palmar aponeurosis
wrist flexion (radiocarpal joint)

63
Q

palmaris longus nerve enervation (not impt)

A

median nerve C7 and C8

64
Q

flexor carpi ulnaris actions

A

wrist flexion
ulnar deviation

65
Q

flexor carpi ulnaris attachments (proximal)

A

humeral head: common flexor tendon/medial epicondyle of humerus
ulnar head: posterior ulna

66
Q

flexor carpi ulnaris attachments (distal)

A

pisiform, hook of hamate, base of 5th metacarpal

67
Q

flexor carpi ulnaris nerve enervation and spinal level

A

ulnar nerve C7 and C8*

68
Q

flexor carpi ulnaris two heads

A

humeral head and ulnar head

69
Q

3/4 common flexor tendon muscles are enervated by the median nerve. what’s the only muscle originating at the medial epicondyle that isn’t enervated by the median nerve

A

flexor carpi ulnaris
enervated by the ulnar nerve

70
Q

pronator quadratus nerve enervation and spinal level

A

median nerve C8 and T1

71
Q

pronator quadratus attachments

A

distal ulna and distal radius

72
Q

what are the two pronators of the forearm

A

pronator teres
pronator quadratus

73
Q

where is the oblique cord found

A

below radial notch of ulna to the radial tuberosity

74
Q

where does the quadrate ligament run

A

radial neck to radial notch of ulna

75
Q

what motion does the oblique cord limit

A

distal (inferior) motion of the radius (pulled elbow)

76
Q

what are the discs in the wrist

A

radioulnar joint (articular disc) and triangular disc (cartilage, between lunate, triquetrum, ulna)

77
Q

does the radial nerve do pronation

A

no

78
Q

are the elbow ligaments stronger colaterally or anterior/posterior

A

colaterally

79
Q

what muscles make up the superficial layer of the forearm

A

PT, FCR, PL, FCU

80
Q

what muscles attach at the common flexor tendon

A

pronator teres
flexor carpi radialis
palmaris longus
flexor digitorum superficialis
flexor carpi ulnaris.

Anatomy E2 (10 decks)

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