Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BT_anatomySTEP > MSK/CT > Flashcards

MSK/CT Flashcards

1
Q

drawer signs are for?

A

ACL (anterior)

PCL (posterior)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

valgus vs varus force?

A

valgus –> lateral force

varus –> medial force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

McMurray test?

A

patient supine, knee rotated internally/externally
–> meniscus tears!
pain on external rotation = medial
pain on internal rotation = lateral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

unhappy triad?

A

lateral force –> planted leg
classic triad: ACL, MCL, medial meniscus
lateral meniscus more commonly affected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

repeated trauma, lots of kneeling, knee pain?

A

prepatellar bursitis

aka housemaid’s knee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

popliteal fluid collection?

A

Baker’s cyst

often related to chronic jt dz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the rotator cuff mm?

A

SITS
supraspinatus (suprascapular n) - abducts
infraspinatus (suprascapular n) - ext rotates
teres minor (axillary n) - ext rotates
subscapularis (upper and lower subscapular n) - int rotates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

medial vs lateral epicondylitis?

A 
medial = golfer's = repeated flexion
lateral = tennis = repeated extension
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

most commonly fractured carpal bone, prone to avascular necrosis?

A

scaphoid

** in snuffbox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

dislocation of this carpal bone may cause carpal tunnel?

A

lunate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

FOOSH damages this carpal bone?

A

hook of hamate

** may injure ulnar n

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

dz assoc with carpal tunnel?

A

pregnancy (not really a disease, but you get it)
RA
hypothyroidism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

guyon canal syndrome?

A

compression of ulnar n at wrist or hand

classically in cyclists

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

flattened deltoid, loss of abduction after 15deg, loss of sensation over deltoid?

A 
axillary n (C5-C6)
runs with post circumflex humeral artery

** injured with fx of surgical neck or anterior humeral dislocation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

loss of forearm flexion and supination, loss of sensation over lateral forearm?

A

musculocutaneous n (C5-C7)

** injured with upper trunk compression - mostly trauma (birth or adult)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

wrist drop, decreased grip, loss of sensation over posterior arm/forearm/dorsal hand?

A 
radial n (C5-T1)
runs with deep brachial a

** injured with midshaft fx of humerus, compression of axilla (Saturday night palsy, crutches)

17
Q

Pope’s blessing, loss of wrist/lateral finger flexion, thumb opposition, 2nd/3rd lumbricals, loss of thenar eminance/lateral finger sensation?

A 
median n (C5-T1)
runs with brachial a

** injured with supracondylar fx of humerus, carpal tunnel, wrist laceration

18
Q

loss of wrist flexion, medial finger flexion, finger abduction/adduction; loss of sensation over medial 1 1/2 fingers and hypothenar eminence?

A 
ulnar n (C8-T1)
runs with ulnar a
    • injured with fx of medial epicondyle of humerus, fractured hook of hamate
    • if proximal lesion, get radial deviation of wrist upon flexion
19
Q

i can’t oppose my thumbs! what nerve did i hurt?

A

recurrent branch of median nerve via superficial laceration of palm
loss of thenar mm group
NO sensory loss

20
Q

what are the divisions of the brachial plexus?

A 
Randy Travis Drinks Cold Beer
roots
trunks (upper/middle/lower)
divisions
cords (lateral/posterior/medial)
branches
21
Q

Erb palsy?

A

= waiter’s tip
upper trunk lesion (C5-C6) - lateral neck traction during birth, other trauma

loss of deltoid and supraspinatus –> arm adducted
loss of infraspinatus –> arm internally rotated
loss of biceps –> arm extended and pronated

22
Q

Klumpke palsy?

A

= total claw hand
lower trunk lesion (C8-T1) - upward force on arm in delivery, grabbing branch to break fall

loss of intrinsic hand mm –> MCP jts extended, PIP and DIP jts flexed

23
Q

Klumpke palsy + atrophy, pain and edema?

A

thoracic outlet syndrome 2/2 cervical rib, pancoast

lower brachial trunk and subclavian vessels compressed

24
Q

winged scapula?

A

lesion of long thoracic n (C5-C7)
2/2 stab wound or mastectomy
loss of serratus anterior –> can’t abduct arm past horizontal

25
Q

what lesion/action combinations give you an ulnar claw/pope’s blessing?

A

distal ulnar lesion + trying to extend fingers

prox medial lesion + trying to make a fist

26
Q

what lesion/action combinations give you a median claw/ok gesture?

A

distal median lesion + trying to extend fingers

proximal ulnar lesion + trying to make a fist

27
Q

what do the interossei do?

A

dorsal abduct fingers

palmar adduct fingers

28
Q

what do the lumbricals do?

A

flex MCP jt

extend PIP and DIP jt

29
Q

decreased medial thigh sensation and decreased adduction?

A

obturator n (L2-L4)

** injured in pelvic surgery

30
Q

decreased thigh flexion and leg extension?

A

femoral n (L2-L4)

** injured in pelvic fx

31
Q

footdrop, loss of sensation on dorsum of foot?

A

common peroneal n (L4-S2)

** injured in compression of lateral leg, fibular neck fx

32
Q

inability to curl toes, loss of sensation on sole of foot?

A

tibial n (L4-S3)

    • injured in knee trauma, Baker cyst (proximal), tarsal tunnel syndrome (distal)
    • proximal lesion –> loss of inversion and plantarflexion
33
Q

Trendelenburg?

A

superior gluteal n (L4-S1)
(to medius and minimus –> can’t abduct hip well)

** injured during IM injct to upper medial gluteal region

34
Q

can’t climb stairs, rise from seated?

A

inferior gluteal n (L5-S2)
(to maximus –> can’t extend hip)

** injured in post hip dislocation

35
Q

components of sciatic nerve?

A

L4-S3, to posterior thigh

splits into common peroneal and tibial nn

36
Q

pudendal n?

A

S2-S4
perineum
childbirth- use ischial spine as landmark for nerve block

37
Q

weakness of knee extension, decreased patellar reflex?

A

L3-L4 herniation (–> L4 nerve root)

38
Q

weakness of dorsiflexion, difficulty heel-walking?

A

L4-L5 herniation (–> L5 nerve root)

39
Q

weakness of plantarflexion, difficulty toe-walking, decreased Achilles reflex?

A

L5-S1 herniation (–> S1 nerve root)

BT_anatomySTEP (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions