N-M DDx

Question 1

Biceps DTR nerve roots?

Answer 1

• C5-6

Question 2

Brachioradialis DTR nerve roots?

Answer 2

• C6

Question 3

Triceps DTR nerve roots?

Answer 3

• C7-8

Question 4

Patella DTR nerve roots?

Answer 4

• L2-L4

Question 5

Ankle DTR nerve roots?

Answer 5

• S1-S2

Question 6

Diff b/t neuropathies and myopathies?

Answer 6

• neuropathies: more prominent distally, length of nerve involved
• myopathies: more pronounced proximally - bigger muscles involved

Question 7

Diff b/t nerve pain and muscle joint pain?

Answer 7

• nerve: shooting pain with numbness and tingling

- muscle: dull to sharp, deep aching pain

Question 8

anterior cord syndrome presentation?

Answer 8

flexion injuries, lose motor, pain, temp

Question 9

Central cord syndrome cause? Presentaion?

Answer 9

• ischemia, hemorrhage
• Upper extremities effected more than lower
• reverse paraplegia (strength will be decreased in UE and still normal in LE)

Question 10

Brown sequard syndrome?

Answer 10

• penetrating injury on one side
• lose motor that side and have mixed sensory loss
  same side lose: light touch, conscious proprioception, vibration, pressure and 2 pt discrimination
  opp side: lose pain, temp sensation and crude touch

Question 11

Myasthenia Gravis PP? how is it diff than bells palsy?

Answer 11

• autoimmune, abs block acetylcholine receptors inhibit excitatory effects
• diff from bell’s palsy b/c won’t hav mouth drop and will have forehead wrinkling
• myasthenia gravis - get progressively tired, have trouble talking or breathing

Question 12

LMNL will affect what side?

Answer 12

• ipsilateral

Question 13

UMNL will affect what side?

Answer 13

• contralateral, pathway decussated in pyramides
• ex: stroke - opp side effected, only lower part of CN7 is effected, so forehead isn’t affected unlike how it is affected in Bell’s Palsy