Posterior cutaneous nerve of the arm
From Ganfyd
The posterior cutaneous nerve of the arm is a branch of the radial nerve.
| Posterior cutaneous nerve of the arm | |
|---|---|
| | |
| System: | |
| Function: | |
| Origin: | Radial nerve |
| Branches: | |
| Insertion: | |
| Arterial supply: | |
| Venous drainage: | |
| Lymphatic drainage: | |
| Innervation: | Skin of the posterior upper arm |
| Vertebral levels: | |
| Search for Posterior cutaneous nerve of the arm in Gray's. | |
Anatomical Course
The nerve is the first branch of the radial nerve, arising in the axilla and passing medially to supply the posterior skin distally as far as the olecranon. It passes posterior to the intercostobrachial nerve.
Sensory Supply
The posterior skin of the upper arm from the distal portion of the axilla to the olecranon.
