Week 8 - axillary nerve

Question 1

Axillary nerve (C5-6)

Course, Motor supply, sensory supply

Answer 1

Course
From the cord of the brachial plexus
Lateral to radial nerve, posterior to the axillary artery
Passes into the axilla
Passes through quadrangular space
Curves around the neck of the humerus

Motor supply
Teres minor
Deltoid

Sensory supply
Patch over Deltoid laterally

Question 2

How can you injure the axillary nerve?

Answer 2

Injured;
* Anterior dislocation
* Crutches
* Neck of humerus fractures