Which statement correctly describes the ventral root ganglion?

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The key idea is that motor information travels out of the spinal cord through the ventral root as efferent fibers. Motor neuron cell bodies sit in the ventral (anterior) horn of the spinal cord, and their axons exit via the ventral root to reach muscles and glands. There aren’t sensory cell bodies in the ventral root—the sensory neuron cell bodies are located in the dorsal root ganglion, and their fibers enter the spinal cord through the dorsal root. Interneurons, meanwhile, are located within the spinal cord's gray matter, not in the roots. Sympathetic ganglia are part of the autonomic nervous system and lie along the sympathetic chain, not in the ventral root. So the statement that the ventral root contains motor, efferent fibers is the correct description.