Final answer:
Visceral sensory neurons are located in the dorsal root ganglia, which contain the cell bodies of these sensory neurons and are attached to the posterior nerve root of spinal nerves.
Step-by-step explanation:
The location of visceral sensory neurons within the spinal ganglia is in the dorsal root ganglia. This is where the cell bodies of sensory neurons are grouped. These sensory neurons have a projection with a sensory receptor that ends in various parts of the body such as skin, muscles, or sensory organs, and another that synapses with a neuron in the dorsal spinal cord. The dorsal root ganglia serve as the sensory ganglion for the spinal nerves, containing unipolar sensory neurons, and is anatomically attached to the posterior nerve root of a spinal nerve.