Flattened deltoid, loss of arm abduction, and loss of sensation over deltoid and lateral arm indicates what nerve injury?

Fractured surgical neck of humerus or anterior dislocation of the humerus indicates what nerve injury?

Upper trunk compression indicates what nerve injury?

Decreased biceps reflex, loss of forearm flexion and supination, and loss of sensation over radial and dorsal forearm indicates what nerve injury?

Compression of axilla, midshaft fracture of humerus, or repetitive protonation/supination indicates what nerve injury?

Supracondylar fracture of humerus or wrist laceration indicates what nerve injury?

Medial epicondyle fracture of humerus, fractured hook of hamate, or compression of nerve against the hamate indicates what nerve injury?

Which muscle abducts the arm initially?

Which muscle externally rotates the arm?

Which muscle adducts and externally rotates the arm?

Which muscle adducts and internally rotates the arm?

Match the following abduction levels with the muscle.

Match the condition and muscle deficits.

Match the condition and nerve deficits.