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KMID : 0880520080440010010
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Chonnam Medical Journal
2008 Volume.44 No. 1 p.10 ~ p.12
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The Number of the Spinal Rootlets of the Accessory Nerve and Their Most Caudal Level on Spinal Cord
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Oh Chang-Seok
Chung In-Hyuk
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Abstract
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This study was performed to clarify the number of the spinal rootlets of the accessory nerve at each cervical segment, and the most caudal level of their arising on the spinal cord. Forty-two sides of the spinal cords were studied under a surgical microscope. The average number of the spinal rootlets of the accessory nerve was 4.4, 3.1, 2.4, 0.8, and 0.4 at the C1, C2, C3, C4, and C5 cervical segment, respectively. The most caudal level of the rootlets on the spinal cord was C3 in 32%, C4 in 30%, C5 in 22%, C6 in 9%, C2 in 5%, and C7 in 2%.
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KEYWORD
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Accessory nerve, Spinal cord
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