| radices spinales nervi accessorii | <anatomy, nerve> Originates from the upper five or six cervical spinal segments, emerges from the lateral surface of the spinal cord and ascends through the foramen magnum to join the cranial root. Synonym: radices spinales nervi accessorii, ramus externus nervi accessorii, pars spinalis nervi accessorii, spinal part of accessory nerve. (05 Mar 2000) |
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| rami spinales | Spinal branches Synonym: spinal arteries. Veins draining the meninges and spinal cord, tributaries of the intervertebral veins. (05 Mar 2000) |
| venae spinales | The veins that drain the spinal cord; they form a plexus on the surface of the cord from which veins pass along the spinal roots to the internal vertebral venous plexus. Synonym: venae spinales. (05 Mar 2000) |
| nervi spinales | The 31 paired peripheral nerves formed by the union of the dorsal and ventral spinal roots from each spinal cord segment. The spinal nerve plexuses and the spinal roots are also included. (12 Dec 1998) |
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