21. The car crushed two vertebrae, damaging vital spinal nerves . 22. Patients with neurofibromatosis type 2, or NF2, develop tumors on the cranial and spinal nerves . 23. Nobody knows why spinal nerve cells normally don't. 24. The segmentation pattern observed in the spinal nerves is in fact governed by the somatic mesoderm. 25. This tests the S1 and S2 spinal nerves . 26. This results in the fact that sacral spinal nerves actually originate in the upper lumbar region. 27. These ?-MNs provide the motor component of the spinal nerves that innervate muscles of the body. 28. These muscles are all innervated by the musculocutaneous nervewhich arises from the seventh cervical spinal nerves . 29. Six months later, Canterbury herniated his C7 vertebra and pinched a spinal nerve , necessitating spinal fusion surgery. 30. In all cases, the axon enters the paravertebral ganglion at the level of its originating spinal nerve .
