Starred Lecture Items L14

Question 1

what ligament is involved in suprascapular nerve entrapment

Answer 1

transverse scapular ligament

Question 2

what travels under the transverse scapular ligament

Answer 2

suprascapular nerve

Question 3

what travels above the transverse scapular ligament

Answer 3

suprascapular artery

Question 4

what muscles are enervated by the suprascapular nerve

Answer 4

infraspinatus and supraspinatus

Question 5

what trunk is the shoulder not enervated by

Answer 5

inferior trunk (C8 T1)

Question 6

what are the areas of entrapment related to thoracic outlet syndrome

Answer 6

between middle and anterior scalene
deep to pec minor
d/w clavicle and 1st rib
UE in hyperabduction
cervical rib

Question 7

what is the dermatome for median nerve

Answer 7

palm, palm side 3 1/2 fingers, nail area of dorsal side

Question 8

what is the dermatome for superficial radial

Answer 8

back of hand, back 3 1/2 fingers, NOT nails

Question 9

what muscles form the common extensor group

Answer 9

ECRB, ECRL, ECU, extensor digitorum, EDM

Question 10

what cord does radial n originate

Answer 10

posterior cord

Question 11

radial nerve actions of the thumb

Answer 11

thenar extension and abduction

Question 12

which thumb action would be impossible if radial nerve was cut

Answer 12

thumb extention

Question 13

radial nerve entrapment areas in radial tunnel

Answer 13

arcade of froshe, distal edge of supinator muscle (not too impt)

Question 14

what myotome does thumbs up action

Answer 14

c6

Question 15

what injury of the wrist occurs if radial nerve is cut

Answer 15

wrist drop (can still move the wrist passively just cant actively raise it)

Question 16

does the deep radial nerve (PIN) innervate any hand intrinsic muscles

Answer 16

no, radial nerve doesn’t innervate any hand intrinsic muscles

Question 17

which long digit doesnt have a PAD attachment

Answer 17

3rd

Question 18

does og branch of median nerve ennervate upper arm?

Answer 18

no

Question 19

what does the AIN ennervate

Answer 19

3 deep layer muscles of the forearm (lateral half of FDP, FPL, PQ)

Question 20

what muscles does the median nerve inervate

Answer 20

PT, FCR, PL, FDS

Question 21

median nerve entrapment sites

Answer 21

pronator teres region
carpal tunnel

Question 22

what travels through the carpal tunnel

Answer 22

median nerve, 10 tendons– 4 flexor superficialis, 4 flexor profundus, FCR, FPL

Question 23

ape hand

Answer 23

median nerve injury
thumb rests in adduction
muscle wasting

Question 24

hand of benediction

Answer 24

median nerve injury

cant flex thumb, index finger, middle finger when making a fist

ulnar nerve is intact so can flex ring and pinkie

Question 25

what muscles do supination

Answer 25

supinator and biceps

Question 26

main supinator

Answer 26

biceps

Question 27

what space does axillary run through

Answer 27

QS

Question 28

t/f the muscles of the thenar compartment all proximally attach at the triquetrum and scaphoid

Answer 28

false (triquetrum is on the ulnar side)

Question 29

does the ulnar nerve innervate muscles in the upper arm

Answer 29

no

Question 30

ulnar neuritis

Answer 30

numbness in 4th and 5th digits from increased pressure and tension on the ulnar nerve in the cubital tunnel w/ flexed elbow

Question 31

ulnar transposition

Answer 31

surgical relocation of the ulnar nerve in the cubital tunnel movement from the cubital tunnel to anterior to the medial epicondyle

Question 32

superficial branch of ulnar nerve deep branch of ulnar nerve

Answer 32

deep: everything in hand superficial: everything else

Question 33

guyons' canal contents, borders

Answer 33

contents: ulnar nerve, ulnar artery borders: pisiform, hook of hamate, roof (volar carpal ligament)

Question 34

screen for ulnar nerve issues

Answer 34

crossing fingers, pulling piece of paper from between fingers

Question 35

claw hand

Answer 35

ulnar nerve injury pinkie and ring in flexion (ext superficialis is intact bc ulnar doesnt inervate), middle, index, and thumb in extension (bc ulnar nerve is affected)

Question 36

what dermatome does ulnar nerve inervate

Answer 36

C8

Question 37

superior trunk injuries (what spinal level, what causes)

Answer 37

MORE COMMON "waiter's tip"/ erb-duchenne palsy C5 C6 injury happens from neck movements

Question 38

inferior trunk injuries (what spinal level, what causes)

Answer 38

LESS COMMON "Klumpke palsy"/paralysis, claw hand C8, T1 UE pulled superiorly

Question 39

what muscles do sock puppet

Answer 39

lumbricals, PAD, DAB

Question 40

tenodesis and what spinal level

Answer 40

passive finger flexion with active wrist extension (C6)

Question 41

of the following which doesnt distally attach to the extensor hood of any of the long fingers extensor indicis extensor digitorum extensor carpi ulnaris lumbricals

Answer 41

extensor carpi ulnaris

Question 42

intrinsic plus position

Answer 42

MCP flexion PIP/DIP extension *sock puppet

Question 43

intrinsic minus position

Answer 43

MCP hyperextension IP flexion *clawing of fingers

Question 44

composite grasp pattern

Answer 44

maximal flexion of all digits *wringing out towel

Question 45

spherical grasp pattern

Answer 45

varied flexion of digits *holding ball

Question 46

hook grasp pattern and which tendon must be attached to do this

Answer 46

flexion of PIPs and DIPs extension of MCPs *carrying bucket flexor digitorum profundus

Question 47

cylindrical grasp pattern

Answer 47

midrange flexion of digits *turning steering wheel

Question 48

UE neural tension position arm on wall, turn head

Answer 48

median nerve

Question 49

UE neural tension position OK sign upside down on eye

Answer 49

ulnar nerve

Question 50

UE neural tension position grab hands behind back and stretch up

Answer 50

radial nerve