MSK Flashcards
1
Q
C2
A
sleep area
occipital protuberance
2
Q
C3
A
lateral/posterior neck
3
Q
C4
A
shoulder pads
4
Q
C5
A
acromioclavicular joint
5
Q
C6
A
thumb sucker
6
Q
C7
A
index finger
7
Q
C8
A
little finger
8
Q
T1
A
medial antecubital fossa
9
Q
T2
A
lateral sternal line
10
Q
T4
A
titties!
11
Q
T10
A
umbilicus
12
Q
L1
A
mid upper thigh
13
Q
L2
A
mid anterior thigh
14
Q
L3
A
mid medial thigh
15
Q
L4
A
medial calf
16
Q
L5
A
1st, 2nd, 3rd toes
17
Q
S1
A
lateral 5th digit
18
Q
S2
A
popliteal fosss
19
Q
S3
A
ischial tuberosity
20
Q
S4/S5
A
perineal area
21
Q
brachial plexus: C5
A
abduct arm
22
Q
brachial plexus: C6
A
flex forearm
23
Q
brachial plexus: C7
A
extend forearm
24
Q
brachial plexus: C8
A
flex fingers
25
brachial plexus: T1
spread fingers, hand muscles
26
what n is associated w. winged scapula
long thoracic
*can be damage in axillary node dissections/abscess drainage*
27
root of the long thoracic n
C5-C7
28
what is the SIT tubercle
greater tubercle of proximal humerus
29
impingement of the suprascapular n in the suprascapular notch can cause
paralysis of the supraspinatus and infraspinatus m
30
what muscles insert on the SIT tubercle
supraspinatus
infraspinatus
teres minor
31
the rotator cuff includes \_\_
plus \_\_
SIT muscles
subscapularis
32
C5 actions and associated muscles
abduction of humerus
external rotation of humerus
supraspinatus m
infraspinatus m
33
nerve roots and action of teres minor m
C5, C6 → axillary n
external rotation of humerus
34
nerve roots and action of subscapularis m
C5, C6
internal rotation of humerus
35
where does the subscapularis insert
lesser tubercle
36
the deltoid and teres minor are innervated by
axillary n
37
major abductor of the arm
deltoid
38
major flexor of the forearm
brachialis
39
what m is used to bench press, abduct, and bend over lateral raise
deltoid
40
impingement of the nerve in the suprascapular notch can cause paralysis of the (2)
supraspinatus m
infraspinatus m
41
rotator cuff tear can involve the __ tendon
supraspinatus
42
chronic rotator cuff tear can cause a space between the \_\_
and the \_\_
2/2 to \_\_
head of the humerus
acromion
full thickness tear of supraspinatus tendon
43
what accounts for 50% of the area of the shoulder socket joint
glenoid labrum
44
what do you think when you hear: click with deep pain in a shoulder injury
glenoid labrum tear
45
summary if injuries associated w. rotator cuff muscles
impingement syndrome
chronic tear
glenoid labrum tear
46
most shoulder dislocations are \_\_
and involve the \_\_
anteroinferior
inferior glenohumeral ligament
47
most important stabilizing structure of the shoulder
inferior glenohumeral ligament
48
recurrent shoulder dislocations are 2/2 to \_\_
glenohumeral instability
49
MOA for anterior shoulder dislocation
arm abducted and externally rotated
50
5 injuries that occur w. anterior shoulder dislocations
bankhart lesions
hill-sachs fracture
capsular tears
damage to inferior glenohumeral ligament
damage to axillary n
51
anterior glenoid labral injury and fx of the anterioinferior glenoid
bankhart lesion
52
fracture of the posterior superior humeral head
hill sachs fracture
53
carpal tunnel syndrome involves the __ n
median
54
3 sx of carpal tunnel syndrome
loss of thenar m fxn and mass
positive Tinel's
tingling/burning in **thumb, index, middle finger**
55
what is tinel's sign
tapping a finger on wrist elicits tingling/pain
56
flexor and supinator m of the forearm
biceps brachii
***not the most powerful flexor tho***
57
biceps brachii is innervated by the __ n
musculocutaneous
58
biceps brachii:
short head origin:
long head origin:
insertion:
short head origin: coracoid process of scapula
long head origin: supraglenoid tubercle of scapula
insertion: radial tuberosity
59
insertion of triceps m
olecranon process
60
triceps origin
olecranon process of ulna
61
triceps origin:
long head:
medial head:
lateral head:
long head: infraglenoid tubercle of scapula
medial head: posterior humerus
lateral head: posterior humerus
62
action of triceps
elbow extension
63
4 sites of humerus fx
surgical neck
midshaft
supracondylar
medial epicondyle
64
proximal humerus/surgical neck fx damages what structures
axillary n
posterior circumflex humeral a
65
mid-shaft humeral fx damages what nerve and artery
radial n
deep brachial a
66
distal humerus supracondylar fx involves what n and artery
median n
brachial a
67
medial epicondyle fx involves what n
ulnar
68
the sciatic n gives rise to the __ nerves (2)
common fibular/peroneal
tibial
69
the common fibular/peroneal n divides into the (2)
deep fibular/peroneal n
superficial fibular/peroneal n
70
the tibial n goes to the __ leg (2)
and is associated with __ action
posterior, medial
plantar flexion, inversion
71
if only the deep peroneal n is affected, __ will be lost,
but __ will be spared
dorsiflexion
eversion
72
fibular neck fx involves __ n damage
and results in \_\_,
which is mediated by __ m
deep peroneal
foot drop
tibialis anterior
73
posterior nerves of the lower extremity \_\_
the foot and __ the toes
plantar flex
flex
74
medial nerves of the lower extremity __ the foot
invert
75
fxn of the superficial peroneal n
foot eversion
76
fxn of the deep peroneal n
foot dorsiflexion
toe extension
77
4 types of injuries associated w. the brachial plexus
obstetric
trauma
lesions
fx of surgical neck (midshaft) of humerus
78
obstetric injury associated w. brachial plexus
Erb's Palsy
Klumpke's Palsy
79
MOI for Erb's Palsy
traumatic vaginal delivery → baby's anterior shoulder gets caught on mom's pubic bone → shoulder dystocia → stretches **upper brachial plexus trunks**
80
MOI for Klumpke's Palsy
traction injury during delivery → damage to C8-T1 → **claw hand**
81
Erb's Palsy involves damage to __ nerve roots
Klumpke's Palsy involves damage to __ nerve roots
Erb's: C5/C6 (E for upper)
Klumpke's: C8/T1 (K for lower)
82
5 lesions associated w. the brachial plexus
winged scapula
erb's palsy
total claw hand
saturday night palsy
flattened deltoid
83
winged scapula involves damage to
C5, C6, C7 -\> wings to heaven
84
Erb's palsy involves damage to
C5, C6
85
total claw hand involves damage to
C8, T1
86
saturday night palsy (wrist drop) involves damage to
radial n → C5-C7
87
flattened deltoid involves damage to
C5, C6 → axillary n
88
fracture of the midshaft of the humerus damages the __ n
radial
89
n that mediates extension of hand, wrist, thumb, digits
radial
90
finger spread n
intrinsic m of hand
ulnar n
91
what is the law in ABOF the LAW
all muscles of the hand are supplied by the ulnar n EXCEPT ABOF the LAW muscles
92
what n are the ABOF the LAW muscles innervated by
median
93
what are the ABOF the LAW muscles
ABductor pollicis brevis
Opponens pollicis
Flexor pollicis longus/brevis
LAteral 2 lumbricals (index and middle finger)
94
3 PE tests for the hand
tata sign
froments sign
thumb to finger approximation
95
what is the tata sign
ability to flex MCP joints at the same time as extending IP joints
96
the tata sign involves the __ muscles
3rd and 4th lateral lumbricals
97
ability to spread fingers against resistance
froments sign
98
froments sign involves the __ m
adductor pollicis
99
thumb to finger approximation tests the __ muscles (2)
and __ n
flexor carpi ulnaris
flexor digitorum profundus
ulnar n
100
wrist drop is associated w. the __ n
radial
101
what bone does the hand articulate w. primarily
radius
102
the long flexors of the hand can also
adduct
103
which structures are commonly injured in knee injuries
menisci
MCL/LCL
ACL/PCL
capsule/synovial joint
104
rotational knee injuries involve the
menisci
105
pop and effusion knee injuries usually involve the
ACL
106
what is the terrible triad of knee injuries
ACL
MCL
MM
107
\_\_ injury is mc than the terrible triad
LM
108
roots of the femoral n
L2-L4
109
5 muscles associated w. the femoral n
quadriceps femoris
patellar ligament
sartorius
iliopsoas
pectineus
110
the muscles innervated by the femoral n are associated w. the __ compartment,
except for the \_\_, which is in the medial compartment
anterior
pectineus
111
fxn of the femoral n
knee extensors
hip flexors
112
roots of the obturator n
L2-L4
113
3 muscles of the obturator n
adductor longus, brevis, magnus
obturator externus
gracilis
114
the obturator n is associated w. the __ compartment
medial
115
fxn of the obturator n
adductors of femur
116
roots of the sciatic n
L4-S3
117
4 muscles associated w. the sciatic n
**hamstrings:**
biceps femoris
semitendinosis
semimembranosis
118
the sciatic n is associated w. the __ compartment
posterior
119
fxn of the sciatic n
hip extension
120
the femoral, obturator, and sciatic n all insert on the \_\_
at the \_\_
medial proximal tibia
pes anserinus (goosefoot)
121
foot drop is associated w. damage to __ nerves (3)
L5
sciatic
peroneal (fibular)
122
motor findings of L5 damage occur __ to the lesion and can involve weakness to
\_\_ muscles (3)
ipsilateral
tibialis anterior
fibularis longus
extensor hallicus longus
123
aseptic necrosis of the talus can occur w. damage to the
posterior tibial a
124
what muscles surround the piriformis (3)
superior/inf gemelli
quadratus femoris
obturator internus/externus
gluteus muscles
125
piriformis syndrome involves compression of the __ n, which is located
\_\_ to the piriformis m
sciatic
posterior
126
where is pain from piriformis syndrome felt
lower back
buttocks
parts of leg and foot
*pain travels up and down the nerve*
127
pain in piriformis syndrome can be accompanied by
numbness
weakness
128
clinical findings in the knee associated w. RA
**panus** formation → **erosion of bone AND cartilage** → hyperplastic synovial membrane, **increased synovial fluid**
129
major flexor of the forearm
brachialis
