Peripheral nerve lessions - arm

Question 1

Nerve lesion: dorsal scapular nerve

Answer 1

Functional deficit: Elevation of the scapula, Adduction (retraction) of the scapula

Question 2

Nerve lesion: Suprascapular nerve

Answer 2

Functional deficit: Abduction of the arm, External (lateral) rotation of the arm

Question 3

Nerve lesion: Lateral pectoral nerve

Answer 3

Abduction (protraction) of the scapula, Flexion of the arm, Adduction of the arm, Internal (medial) rotation of the arm

Question 4

Nerve lesion: Axillary nerve

Answer 4

Flexion of the arm, Extension of the arm, Abduction of the arm, External (lateral) rotation of the arm, Internal (medial) rotation of the arm

Question 5

Nerve lesion: Musculocutaneous nerve

Answer 5

Flexion of the arm, Flexion of the forearm, Supination of the forearm, Adduction of the arm

Question 6

Nerve lesion: Radial nerve

Answer 6

Extension of the arm, Flexion of the forearm, Extension of the forearm, Supination of the forearm