diff dx neuro - nerve roots etc

Question 1

primary sensations (2)
deep sensations (2)

Answer 1

primary sensations

1. superficial sensations
2. light touch, pain & temp

deep sensations

1. proprioception
2. vibration sensation

Question 2

cortical or discriminatory test (4)

Answer 2

1. two point discrimination
2. sterognosis
3. graphesthesia
4. double simultaneous stimulation

Question 3

C5
motor (2)
reflex
sensory

Answer 3

motor: bicep & delts
reflex : bicep
sensory: upper, lateral, anterior arm

Question 4

C6
motor (3)
reflex
sensory

Answer 4

motor: wrist extensors (ECRL & b) & bicep
reflex: brachioradialis
sensory: lateral cubital fossa => anterior thumb & 4th digit

Question 5

C7
motor (3)
reflex
sensory

Answer 5

motor: triceps, wrist flexors, finger extensors
reflex: tricep
sensory: anterior middle finger

Question 6

C8
motor (2)
reflex
sensory

Answer 6

motor: interossei (ab/duction), finger flexion
reflex: none
sensory: medial forearm => first 2 digits

Question 7

T1
motor
reflex
sensory

Answer 7

motor: interossei (ab/duction)
reflex: none
sensory: anterior around medial cubital fossa

Question 8

think about the answer....
similarities and differences btwn presentations of each...
 SCI
 radiculopathy
 peripheral nerve lesion
 myopathy

Answer 8

think hard! this will be lost of questions on the test

Question 9

L4
motor
reflex
sensory

Answer 9

motor: ant tib
reflex: knee extension
sensory: medial malleolus

Question 10

L5
motor
reflex
sensory

Answer 10

motor: ext hall longus
reflex: none
sensory: dorsum of foot

Question 11

S1
motor (2)
reflex
sensory

Answer 11

motor: fib (peroneus) longus and brevis
reflex: PF
sensory: lateral malleolus

Question 12

musculocutaneous nerve
roots
what it innervates

Answer 12

roots: C5-C7

innervates anterior compartment of arm
biceps, coracobrachialis, brachialis

Question 13

axillary nerve
roots
what it innervates

Answer 13

roots: C5-C6

innervates:
1. delts
2. teres minor

Question 14

radial nerve
roots
what it innervates

Answer 14

roots: C5-T1 (T1 inconsistent)
innervates: posterior arm & forearm

Question 15

median nerve
roots
what it innervates

Answer 15

roots: C5-T1 (C5 inconsistent)
innervates: anterior forearm, except* FCU & profundus digits 4 & 5

Question 16

ulnar nerve
roots
what it innervates

Answer 16

roots: C7-T1 (C7 inconsistent )

innervates:
1. profundus (4th & 5th)
2. FCU
3. intrinsics

Question 17

lateral pectoral nerve
roots
what it innervates

Answer 17

C5-C7

innervates pec major
lateral less, median more

Question 18

median pectoral nerve
roots
what it innervates

Answer 18

C8-T1

innervates pec major & minor
lateral less, median more

Question 19

thoracodorsal nerve
roots
what it innervates

Answer 19

C6-C8

innervates lats

Question 20

dorsalscapular nerve
roots
what it innervates

Answer 20

C5

rhomboids & levator scap

Question 21

lower subscap
roots
what it innervates

Answer 21

C5-C6

subscap and teres major

Question 22

upper subscap
roots
what it innervates

Answer 22

C5-C6

subscap

Question 23

suprascapular nerve
roots
what it innervates

Answer 23

C5-C6

supraspinatus & infraspinatus

Question 24

long thoracic nerve
roots
what it innervates

Answer 24

C5-C7

serratus anterior

Question 25

femoral nerve roots what it innervates

Answer 25

anterior compartment (hip flexors/ knee extensors) L2, L3 1. pectineus 2. Ilopsosas 3. sartorius

Question 26

muscular branch of femoral nerve roots what it innervates

Answer 26

L2-L4 quads

Question 27

superior gluteal nerve roots what it innervates

Answer 27

L4-L5 1. TFL 2. glut med 3. glut min

Question 28

inferior gluteal nerve roots what it innervates

Answer 28

L5-S2 glut max

Question 29

nerve supply to adductor group

Answer 29

obturator nerve L2-L4 except pectineus (femoral nerve L2-L3)

Question 30

nerve supply to hamstrings

Answer 30

tibial division of sciatic nerve L5-S2 except short head of bicep fem = fibular part of sciatic nerve

Question 31

``` innervation of lower leg compartments anterior lateral superficial posterior deep posterior ```

Answer 31

``` anterior = deep fibular nerve lateral = superficial fibular nerve (L5-S2) ``` superficial & deep posterior = tibial nerve

Question 32

injury to common fibular nerve

Answer 32

paralysis in all anterior and lateral compartments => loss of eversion and DF (foot drop)

Question 33

sciatic nerve innervates

Answer 33

no structures in gluteal region* ``` the skin of the foot most of the leg below the knee posterior thigh muscles (hamstrings) all muscles in lower leg all foot muscles ```