Anatomy The following is true of brachial plexus: A Cervical rib involves lateral cord B Musculocutaneous nerve arises from medial cord C Radial nerve arises from posterior cord D Post fixed plexus is formed by C45678 and T1 💡 Explanation The following is true of brachial plexus: ✓ Correct Answer: C. Radial nerve arises from posterior cord