Brachial plexus

The brachial plexus is formed by the spinal cord segments C5–Th1 and divides into a supraclavicular and an infraclavicular part.

The supraclavicular branches are:

• Suprascapular nerve

• Dorsal scapular nerve

• Long thoracic nerve

• Subclavian nerve

• Muscular branches

The infraclavicular branches are:

• Medial and lateral pectoral nerves

• Musculocutaneous nerve

• Median nerve

• Ulnar nerve

• Medial cutaneous nerve of arm

• Medial cutaneous nerve of forearm

• Axillary nerve

• Radial nerve

• Subscapular nerve

• Thoracodorsal nerve

Figure