MSRs

Question 1

C5

Answer 1

Muscle: deltoid (axillary)
Reflex: biceps (Musculocutaneous)
Dermatome (R)

Entrapment would be at C4/5

Question 2

C6

Answer 2

Muscle: biceps, wrist extensors (deep radial)
Reflex: Brachioradialis, radialis (radial)
R: (dermatome)

Entrapment would be at C5/6

Question 3

C7

Answer 3

Muscle: triceps, wrist flexors (median/ulnar)
Reflex: triceps (radial) (axillary for lateral head of triceps)
R(dermatome)

Entrapment would be at C6/7

Question 4

C8

Answer 4

Muscle: finger flexors (median and ulnar)
Reflex: finger flexors
R(dermatome)

Entrapment would be at C7/T1

Question 5

T1

Answer 5

Muscle: interossei, PADs & DABs (ulnar)
Reflex: none

entrapment would be between T1/T2

Question 6

L4

Answer 6

Muscle: Tibialis anterior (deep fibular nerve)
Sensation: medial foot and leg to the end of the great toe
Reflex: quadriceps (patellar tendon reflex)

Entrapment would be at L3/4 disc

Deviate foot up and in for tibialis anterior

Question 7

L5

Answer 7

Muscle: extensor hallicus longus
Sensation: dorsum of the foot and back of the heel
Reflex: medial hamstring (not usually done)

Entrapment would be at L4/5 disc

Flat foot on table and ask them to raise big toe against pressure to test extensor hallicus longus

Question 8

S1

Answer 8

Muscle: Fibularis longus and brevis (superficial fibular nerve)
Sensation: outside of the foot to the end of the little toe
Reflex: Achilles reflex

Entrapment would be at L5/S1 disk

Foot down and out and apply pressure in opposite direction to test fibularis longus and brevis