Spinal Nerves

1. the ____ horn of grey matter contains somatic motor neurons (efferent)
4. the ____ horn of grey matter conveys sensory/afferent information
5. the area of the spinal cord that contains myelinated axons
7. the germ layer that spinal nerves are derived from via the neural tube
9. spinal nerve TN2 exits ___ to the T2 vertebra
10. the fibers found within the ventral (anterior) root from the gray matter of spinal cord and carry information from the CNS to the muscles of the body
11. ____ nerves arise from the spinal cord via two roots, the ventral (anterior) and dorsal (posterior)
13. the number of pairs of spinal nerves
15. group of cell bodies in the peripheral nervous system
18. Cervical nerve 1 (CN1) exits ___ to the first cervical vertebra
19. a defined group of muscles innervated by a single spinal nerve root

2. the small posterior and large anterior ___ are branches of mixed spinal nerves that carry both sensory and motor fibers
3. ___ matter contains cell bodies in the spinal cord
4. sensory information from a specific area of skin
6. the spinal nerves are part of the ____ nervous system
8. ___ root carries sensory fibers from organs and other parts of the body to the posterior horn of gray matter in the spinal cord
12. networks of intersecting nerves
14. bundle of axons in the peripheral nervous system
16. sensory fibers that carry information from the periphery to the CNS
17. ___ spinal nerve is the combination of ventral and dorsal nerve roots with both sensory and motor information