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Musculoskeletal > First Aid - MSK > Flashcards

First Aid - MSK Flashcards

(62 cards)

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1
Q

Unhappy triad- involved anatomy and usual cause

A

ACL, MCL, meniscus (classically medial, lateral technically more common)
sports injury: lateral force to planted leg

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2
Q

ACL/PCL/LCL/MCL - nomenclature refers to which attachment?

A

sites of tibial attachment

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3
Q

Pudendal nerve block location and use

A

ischial spine

relieve delivery pain

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4
Q

Appendix (McBurney’s point) location

A

2/3 of way from umbilicus to ASIS

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5
Q

Lumbar puncture location

A

iliac crest (L4)

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6
Q

Rotator cuff muscles and actions

A

SITS:
Supraspinatus - abducts
Infraspinatus - laterally rotates
Teres minor - adducts and laterally rotates
Subscapularis - medially rotates and adducts

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7
Q

Rotator cuff innervation

A

C5-C6

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8
Q

Wrist bones (ulnar to radial)

A

So Long To Pinky, Here Comes the Thumb:
proximal row: scaphoid, lunate, triquetrium, pisiform
distal row: hamate, capitate, trapezoid, trapezium
1st row ulnar to radial, 2nd row radial to ulnar

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9
Q

Most commonly fractured wrist bone and common complication

A

scaphoid

prone to avascular necrosis

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10
Q

Dislocation of which bone may lead to acute carpal tunnel?

A

lunate

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11
Q

Waiter’s Tip (Erb’s palsy)

A 
Upper trunk (C5/C6) lesion
infants following delivery trauma
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12
Q

Claw hand (Klumpke’s palsy)

A 
Lower trunk (C8/T1) lesion
embryologic childbirth defect or thoracic outlet syndrome
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13
Q

Wrist drop

A

Posterior cord lesion

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14
Q

Winged scapula

A

Long thoracic (C5-T1) lesion

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15
Q

Saturday night palsy (wrist drop)

A

Radial branch lesion

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16
Q

Deltoid paralysis

A

Axillary branch lesion (C5/6)

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17
Q

Difficulty flexing at elbow

A

Musculocutaneous branch lesion

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18
Q

Claw hand (intrisinc hand muscles)

A

Ulnar branch

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19
Q

Brachial plexus levels

A 
Randy Travis Drinks Cold Beer:
Roots (C5-T1)
Trunks (upper, middle, lower)
Divisions (crossing over occurs here
Cords (lateral, posterior, medial)
Branches (axillary, radial, musculocutaneous, ulnar)
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20
Q

Axillary nerve levels

A

C5/6

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21
Q

Axillary nerve - typical injury

A

surgical neck of humerus (fracture)

dislocation of humeral head

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22
Q

Axillary nerve - motor and sensory deficit

A

arm abduction above shoulder

sensory loss over deltoid muscle

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23
Q

Radial nerve levels

A

C5-T1

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24
Q

Radial nerve - typical injury

A

midshaft of humerus (fracture)

Saturday night palsy

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25
Radial nerve - motor deficit
BEST extensors: | brachioradialis, extensors of wrist/fingers, supinator, triceps
26
Radial nerve - sensory deficit
posterior arm | dorsal hand
27
Median nerve - typical injury
supracondylar humerus fracture (proximal)
28
Median nerve - motor deficit
wrist flexion opposition of thumb lateral finger flexion (digits 1+2)
29
Median nerve - sensory deficit
dorsal and palmar aspects of lateral 3.5 fingers (through part of ring finger) thenar emminence
30
Ulnar nerve - typical injury
medial epicondyle fracture ("funny bone")
31
Ulnar nerve - motor deficit
medial (4+5) finger flexion | wrist flexion
32
Ulnar nerve - sensory deficit
medial 1.5 fingers (ring and pinky) | hypothenar emminence
33
Musculocutaneous nerve - typical injury
upper trunk compression
34
Musculocutaneous nerve - motor deficit
flexion at elbow (biceps, brachialis, corachobrachialis)
35
Musculocutaneous nerve - sensory deficit
lateral forearm
36
Inability to extend digits 4/5 when opening hand
Ulnar claw: ulnar nerve at hook of hamate (FOOSH)
37
Inability to extend digits 2/3 when opening hand
Median claw: carpal tunnel or dislocated lunate (distal median nerve)
38
Unable to flex digits 2/3 when making fist
Pope's blessing: proximal median nerve injury
39
Unopposable thumb (can't abduct)
Ape hand: proximal median nerve injury
40
Inability to extend any fingers (clawing of all digits)
Klumpke's total claw: lower trunk (C8-T1) lesion
41
Obturator nerve - levels
L2-L4
42
Obturator nerve - typical injury
anterior hip dislocation
43
Obturator nerve - motor deficit
thigh adduction
44
Obturator nerve - sensory deficit
medial thigh
45
Fermoral nerve - levels
L2-L4
46
Femoral nerve - typical injury
pelvic fracture
47
Femoral nerve - motor deficit
thigh flexion | leg extension
48
Femoral nerve - sensory deficit
anterior thigh and medial leg
49
Common fibular (peroneal) nerve - levels
L4-S2
50
Common fibular nerve - typical injury
trauma/compression of lateral leg | fibular neck fracture
51
Common fibular nerve - motor deficit
foot eversion and dorsiflexion (foot drop presents)
52
Common fibular nerve - sensory deficit
anterolateral leg and dorsal foot
53
Tibial nerve - levels
L4-S3
54
Tibial nerve - typical injury
knee trauma
55
Tibial nerve - motor deficit
foot inversion and plantarflexion | toe flexion
56
Tibial nerve - sensory deficit
sole of foot
57
Superior gluteal nerve - levels, injury and motor deficit
L4-S1, posterior hip dislocation, thigh abduction (+ Trendelenberg sign)
58
Inferior gluteal nerve - levels, injury and motor deficit
L5-S2, posterior hip dislocation | can't jump, climb stairs or rise from seat (push inferiorly)
59
Osteoblast function
build bone (secrete collagen and catalyze mineralization)
60
Osteoclast function
mlutiucleated cells that dissolve bone
61
Parathyroid hormone function
low, intermittent levels: anabolic effect on bone | chronic high levels (osteitis fibrosa cystica): cataloic effect on bone
62
Estrogen effects on bone
inhibits apoptosis of osteoblasts, induces apoptosis of osteoclasts

Musculoskeletal (8 decks)

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