The dorsal root ganglia mainly contain cell bodies of Answer Question 3[input] neurons.

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BlackTom AI · Accepted Answer

The question asks about what type of neurons have their cell bodies mainly in the dorsal root ganglia.
First, recall the anatomical organization of the spinal cord: dorsal roots carry afferent (sensory) information into the spinal cord, while ventral roots carry efferent (motor) information away from the spinal cord.
The dorsal root ganglia are clusters of neuron cell bodies located just outside the spinal cord along the dorsal root. These neuron cell bodies belong to sensory neurons, specifically the pseudounipolar (or unipolar) sensory neurons that convey sensory information from the periphery to the central nervous system.
Therefore, the dorsal root ganglia mainly contain cell bodies of sensory neurons, not motor neurons or interneurons. If one might confuse it with other options, note that motor neuron cell bodies reside in the ventral horn of the spinal cord and their axons project through the ventral roots to innervate muscles.
In summary, the correct interpretation is that the dorsal root ganglia house sensory neuron cell bodies, aligning with the input nature of the dorsal root pathway.

The dorsal root ganglia mainly contain cell bodies of Answer Question 3[input] neurons.

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