NEET PG DENTAL EXAM

Detailed explanation-1: -A dorsal root ganglion (or spinal ganglion; also known as a posterior root ganglion) is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve. The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia.

Detailed explanation-2: -The spinal ganglion contains the cell bodies of sensory neurons situated in the posterior root of each spinal nerve (except for spinal nerve C1). These neurons are known as first-order neurons of the somatosensory system and carry sensations related to touch, vibration, proprioception, pain and temperature.

Detailed explanation-3: -DRG neurons are pseudo-unipolar neurons with a single axon that bifurcates into two separate branches, resulting in a distal and proximal process.

Detailed explanation-4: -The correct answer is b)-the dorsal root of a spinal nerve contains the axons of afferent sensory neurons, and conveys sensory information from the periphery to the central nervous system; sensory neuron cell bodies are located in the dorsal root ganglion.