Radial Nerve

• Radial Nerve:

  • has three cutaneous branches that supply the skin on the back of the arm and forearm:
  • Posterior cutaneous nerve of the arm
  • Lower lateral cutaneous nerve of the arm
  • Posterior cutaneous nerve of the forearm
• Radial Nerve - Posterior cutaneous nerve of the arm:

  • Supplies the skin on the proximal third of arm posteriorly
• Radial Nerve - Lower lateral cutaneous nerve of the arm:

  • Supplies the skin on the lower lateral part of the arm
  • Supplies a small area on forearm
• Radial Nerve - Posterior cutaneous nerve of the forearm:

  • Supplies area of skin on dorsum of forearm as far as the wrist