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Figure 2 | Journal of Brachial Plexus and Peripheral Nerve Injury

Figure 2

From: Variations of the origin of collateral branches emerging from the posterior aspect of the brachial plexus

Figure 2

Right BP with collateral origin variations for lower subscapular nerve and thoracodorsal nerve. C4, C5, C6, C7, C8, T1, T2: spinal nerve ventral rami with prefixed C4 (asterisk) and postfixed T2 (asterisk). ST: superior trunk. MT: middle trunk. IT: inferior trunk. LC: lateral cord. PC: posterior cord. MC: medial cord. A: axillary nerve. R: radial nerve. Mct: musculocutaneous nerve. U: ulnar nerve. M: median nerve. ASM: serratus anterior muscle. SSM: subscapularis muscle. CP: cervical plexus. 1: dorsal scapular nerve (originating from C4). 2: suprascapular nerve. 3: upper subscapular nerve. 4: lower subscapular nerve (originating from the axillary nerve). 5: thoracodorsal nerve originating from MT posterior division. 6: long thoracic nerve.

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Journal of Brachial Plexus and Peripheral Nerve Injury

ISSN: 1749-7221