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msk > Dr. emma upper msk > Flashcards

Dr. emma upper msk Flashcards

1
Q
A

acromioclavicular ligament & joint

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2
Q

Basilic vein ascends on the medial side and runs parallel to brachial artery and drains into ->

A

Axillary Vein

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3
Q

Cephalic vein ascends to median cubital vein (venipuncture) and joins with ->

A

Axillary vein

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4
Q

Which superficial vessel of the upper limb communicates with median cubital vein before joining axillary vein

A

Cephalic

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5
Q

What kind of veins form b/w superficial and deep veins of the upper limb

A

Perforating veins

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6
Q

cephalic and basilic veins originate from where

A

subcutaneous tissue on dorsum of the hand FROM the dorsal venous network

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7
Q

pectoralis major innervation (HIGH yield)

A

medial and lateral pectoral nerves

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8
Q

pectoralis major action

A

flex, adduct, medial rotate

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9
Q

pectorlis minor origin

A

ribs 3,4,5

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10
Q

perctoralis minor innervation

A

medial pectoral n.

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11
Q

t/f
pec. minor acts on scapula
pec. major humerus

A

t

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12
Q

pec. minor action

A

protraction, depression, medial rotate of scapula

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13
Q

what bundle travels under the pec. minor-coracoid process bridge

A

neurovascular bundle

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14
Q

subclavious n. and action

A

n. to subclavius
depress & stabilize clavicle

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15
Q

difference b/w pectoral nerves (HIGH yield boards q)

A

pec major = both lateral and medial pec. n.
pec. minor = only medial pec. n.

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16
Q

serratus anterior action

A

holds scapula to chest wall

  • protraction and superior rotation of scapula
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17
Q

serratus anterior n.

A

long thoracic n. (remember it breaks off of brachial plexus)

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18
Q

trapezius origin

A

superior nuchal line
extends from SP of C7-T12

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19
Q

trapezius n.

A

accessory n. (CN XI) - SHOULDER shrug test to assess

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20
Q

which 3 structures makes up the posterior triangle

A

trapezius
clavicle
SCM

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21
Q

in the posterior triangle which vessels (2) pass b/w anterior & middle scalene muscles

A

brachial plexus & axillary artery (also runs with axillary vein)

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22
Q

which n. innervates trapezius and SCM & descends from base of skull, out of posterior triangle, down to side of the neck, then deep to trape

A

accessory n.

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23
Q

latissimus dorsi origin

A

spines of T6-L5
median crest of sacrum, iliac crest

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24
Q

latissimus dorsi action

A

extend, adduct, medial rotate humerus

aka Chin Ups muscle

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24
Q

latissimus dorsi insertion

A

intertubercular groove of humerus

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25
Q

latissimus dorsi innervation

A

thoracodorsal n.

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26
Q

which posture muscles (3) are innervated by the Dorsal Scapular N.

A

Levator Scapulae
Rhomboid Minor
Rhomboid Major

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27
Q

nerves to muscles of the superficial back (4)

A

dorsal scapular
suprascapular
accessory
axillary

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28
Q

what group does these muscles fall under:

deltoid
supraspinatus
infraspinatus
subscapularis
t. maj
t. min
triceps

A

muscles on the scapula that move the humerus (innervated on the humerus to help it move)

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29
Q

deltoid origin (proximal attachments - think CLASPs) and insertion

A

proximal attachments: CLASPs
Clavicle
Acromion
Spinous Process

insertion:
deltoid tuberosity of humerus

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30
Q

deltoid action

A

action on humerus:
flex & extend
abduct (when all 3 contract together)
medial & lateral rotate

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31
Q

deltoid innervation

A

axillary N.

32
Q

which space does the axillary n. pass through

A

quadrangular space
made up of: teres maj. & min
long head or tri & humerus

33
Q

what condition = compression of the axillary n. and posterior humeral circumflex artery

A

Quadrilateral Space Syndrome (QSS)

34
Q

name rotator cuff muscles (SITS)

A

Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

35
Q

Subscapularies N.

A

upper & lower subscapular nerves

36
Q

supraspinatus & infraspinatus N.

A

suprascapular n.

37
Q

teres minor n.

A

axillary n. (same as delt)

38
Q

which group of muscles blend w/ glenohumeral jt capsule - reinforcing it

A

rotator cuff muscles

39
Q

match action to SITS muscle

  1. laterally rotate humerus
  2. abduct humerus (w/ deltoid)
  3. medial rotation of humerus
A
  1. Teres Min. & Infraspinatus
  2. supraspinatus
  3. subscapularis
40
Q

which nerve passses through the suprascapular foramen/notch, and then the greater scapular (spinoglenoid) notch

A

suprascapular n.

41
Q

teres major action

A

adduct, medial rotate, extend humerus

42
Q

teres maj. innervation

A

lower supscapular n. (off axillary n.)

43
Q

flow of upper limb arteries from top to bottom

A

Subclavian -> Axillary -> Brachial -> Radial & Ulnar -> deep & superfical Palmar Arches -> Digital Arteries

44
Q

axillary artery is divided into 3 parts:

1st part (1 branch): gives rise to (inferior/sup.) thoracic artery
2nd part (2 branch): thoracoacromial a. & (lateral/superior) a.
3rd part (3 branches): anterior & post. circumflex humeral arteries, (largestof all branches of axillary artery = ?)____

A

1st = superior thoracic
2nd = thoracoacriomial & lateral thoracic artery
3rd = subscapular artery, ant. & post. circumflex humeral artery

45
Q

importance of collateral circulation around scapula: if axillary artery is occluded ?

A

blood is shunted from subclavian a. to distal axillary a. by reverse flow in circumflex scapular/subscapular arteries

46
Q
  • dorsal scapular a.
  • suprascapular a.
  • circumflex scapular a.
  • transverse cervical a.

are all branches of which 2 arteries?
where do they anastomose?

A

branches from subclavian & axillary

anastomase around scapula

47
Q

deep veins are (paired/unpaired) veins that accompany majory arteries

A

paired veins - Radial, Unlar, brachial etc.

48
Q

which 3 nerves innervate elbow jt. ligaments

A

musculocutaneous
radial
ulnar

49
Q

arterial supply of elbow jt. ligaments =

A

anastomosis of arteries around the jt.

50
Q

(Ulnar/Radial/annular) collateral ligament of elbow:
sling around head of radius to form proximal radioulnar jt

permits rotation of head of radius around ulna

A

annular

51
Q

(Ulnar/Radial) collateral ligament of elbow:
attached to annular ligament

A

radial

52
Q

(Ulnar/Radial/annular) collateral ligament of elbow:

triangular shaped ligament w/ upper & lower bands; ulner n. passes b/w bands posterior to medial epicondyle

A
53
Q

proximal radio-ulnar jt:

which membrane links bones together

creates pivot type synovial jt. -> allows for sup. & pronation

A

interosseous membrane

54
Q

arm: everything thats extending or supinating = (RADIAL/ULNAR) n.

A

**RADIALLLLL N. **

55
Q

pronators of the arm = (median/ulnar) n.

A

MEDIAN n.

56
Q

flexors of arm = (median/musculocutaneous) n.

A

musculocutaneous n

57
Q

who does the most force of flexion - PURE flexor

A

BRACHIALIS

58
Q

WHICH n.

  • arises from lateral cord pierces muscle, and runs b/w bicpes and brachialis
A

musculocutaneous n.

59
Q

muscles of the ant. arm compartment

A

brachialis
coracobrachialis
biceps brachii

60
Q

muscles of post. arm compartment

A

triceps brachii
anconeous

61
Q

which nerve innervates all 3 heads of triceps

A

Radial

62
Q

fracture of arm corresponds to which nerve: ARM

  1. head of humerus
  2. mid shaft
  3. Supracondylar
A

axillary - head
radial - mid shaft
median - supracondylar

63
Q

triangular depression on anterior surface of elbow =

borders =

A

cubital fossa
medially = pronator teres
laterally = brachioradialis
superiorly = imaginary line connecting medial and lateral epicondyle of humerus

64
Q

cubital fossal contents (lateral to med.) - Really Need Beer To Be At My Nicest

  • radial nerve
  • biceps tendon
  • (2 more)
A

brachial artery
median nerve

Really Need (radial nerve) Beer To (biceps tendon) Be At (brachial artery) My Nicest (median nerve).

65
Q

which deep muscle layer of forearm reinforces interosseous membrane (keeping radius and unla together = IMP. in FOSH (fall and oustretched hand) injury)

(good boards q)

A

pronator quadratus

66
Q

intermediate layer of forearm muscle

A

Flexor Digitorum Superficialis
I: on middle phalages of 4 fingers
median N.
Flexes fingers

67
Q

Flexor digitorum profundus (2 innervation points)
Flexor pollicis longus (inserts on the dsital phalanx of thumb)
Pronator quadratus

are all muscles of what group

A

Deep layer of forearm muscles

68
Q

3 functional groups - extonsors muscles of the forearm (posterior group)

A
  1. muscles that extend/abduct or adduct the hand at the wrist
  2. muscles that extend the medial four digits
  3. muscles that extend or abduct thumb
69
Q

extensor carpi radialis longus/brevis/unlaris = which group

A
  1. extend/adduct/abduct hand at wrist
70
Q

extensor digitorum, extensor indicis, extensor digiti minimi

A
  1. muscles that extend the medial 4 digits
71
Q

abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus

A
  1. extend or abduct thumb
72
Q

radial nerve innervates (all/most) muscles of the posterior forearm

A

ALL MUSCLES OF THE FOREARM

73
Q

forearm:
unlar nerve innervation =

A
  • flexor carpi ulnaris
  • 1/2 flexor digitorum profundus (4&5)
  • becomes superfical at the wrist
74
Q

blood pressure taken by which artery?

A

brachial artery

75
Q

superficial palmar arch made up mainly by which artery, + anastomosis with which artery

A

made up of ulnar artery
anastomsis w/ radial artery

76
Q

carpal tunnel structures (3)

A
  1. median nerve
  2. flexors digitorum superficialis & profundus
  3. flexor pollicis longus
77
Q

the following is the result of what syndrome?
- cutaneous sensory loss on median nerve distribution
- thenar wasting
- weakness of lumbricals 1,2

A

carpal tunnel syndrome

78
Q

Muscles that flex the wrist (which ones) have a common attachment at the medial epicondyle of the humerus. A fracture at this location would affect flexion at the wrist.

A

(flexor carpi ulnaris, flexor carpi radialis)

msk (3 decks)

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