Aids to Examination of the PNS mushkies

Question 1

Shoulder abduction:

Answer 1

Root = C5
Nerve = Axillary
Muscle = Deltoid

Question 2

Elbow flexion

Answer 2

Root = C5,6 and C6
Nerve = Musculocutaneous and Radial
Muscle = Biceps and Brachioradialis

Question 3

Elbow extension

Answer 3

Root = C7
Nerve = Radial
Muscle = Triceps

Question 4

Radial wrist extention

Answer 4

Root = C6
Nerve = Radial
Muscle = Extensor carpi radialis longus

Question 5

Finger extension

Answer 5

Root = C7
Nerve = Posterior interosseus
Muscle = Extensor digitorum communis

Question 6

Finger flexion

Answer 6

Root = C8

1. Anterior interosseus nerve = flexor pollicis longus and flexor digitorum profundus (index finger)
2. Median nerve = all other flexors
3. Ulnar nerve = Flexor digitorum profundus (ring and little finger)

Question 7

Finger abduction

Answer 7

Root = T1
Nerve = Ulnar and Median
Muscle = First dorsal interosseus and abductor pollicis brevis

Question 8

Hip flexion

Answer 8

Root = L1, L2
Nerve = No
Muscle = Iliopsoas

Question 9

Hip adduction

Answer 9

Root = L2, L3
Nerve = Obturator
Muscle = Adductors

Question 10

Hip extension

Answer 10

Root = L5, S1
Nerve = Sciatic
Muscle = Gluteus maximus

Question 11

Knee flexion

Answer 11

Root = S1
Nerve = Sciatic
Muscle = Hamstrings

Question 12

Ankle dorsiflexion

Answer 12

Root = L4 
Nerve = Deep peroneal
Muscle = Tibialis anterior

Question 13

Ankle eversion

Answer 13

Root = L5,S1
Nerve = Superficial peroneal
Muscle = Peronei

Question 14

Ankle plantarflexion

Answer 14

Root = S1,S2
Nerve = Tibial
Muscle = Gastrocnemius, Soleus

Question 15

Big toe extension

Answer 15

Root = L5
Nerve = Deep peroneal 
Muscle = Extensor hallucis longus