Tests For Upper Limb Myotomes

Question 1

C4

Answer 1

C4 (Levator scapulae)

• Sitting
• Resisted shoulder elevation (Bi-laterally)

Question 2

C5

Answer 2

C5

• Deltoid
• Sitting
• Resisted shoulder abduction

Question 3

(C5) C6

Answer 3

• C6
• Biceps
• Sitting
• Resisted elbow flexion with forearm supinated

Question 4

C7

Answer 4

C7

• Triceps
• Sitting
• Resisted elbow extension

Question 5

(C7) C8

Answer 5

(C7) C8

• Extensor pollicus longus
• Resisted extension of the distal phalanx of thumb

Question 6

C8

Answer 6

C8
(Flexor digitorum profundus)
- Sitting
- Resisted finger flexion on 2nd - 5th digits

Question 7

T1

Answer 7

T1
Intrinsic hand muscles
- Sitting
- Resisted phalangeal adduction with MCPJ’s in 90 degrees flexion, PIPJ’s and DIPJ’s fully extended.