All of the following are true about spinal nerves EXCEPT
A) they are all mixed.
B) there are 31 pairs
C) spinal nerves may contain nerve fibers of both the somatic and autonomic nervous systems.
D) all motor nerve fibers in spinal nerves extend uninterrupted from the spinal cord to an effector.
Answer: D) all motor nerve fibers in spinal nerves extend uninterrupted from the spinal cord to an effector.D) all motor nerve fibers in spinal nerves extend uninterrupted from the spinal cord to an effector.
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