Which of the following is a direct branch of the posterior cord of the brachial plexus?
- A Upper subscapular nerve ✓
- B Lateral pectoral nerve
- C Suprascapular nerve
- D Medial cutaneous nerve of the forearm
Correct answer: A. Upper subscapular nerve
Explanation
The posterior cord gives five branches: upper and lower subscapular nerves, thoracodorsal nerve, axillary nerve and radial nerve. The lateral pectoral nerve comes from the lateral cord, the medial cutaneous nerve of the forearm from the medial cord, and the suprascapular nerve arises from the upper trunk itself, before the divisions form cords.
Reference: Gray's Anatomy for Students, 4th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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