Where is the DRG located?

Where is the DRG located?

• A. In the spinal canal
• B. Medial part of the spinal cord
• C. Lateral epidural space just under the pedicle
• D. Near the base of the skull

Answer: (C)

The dorsal root ganglion (DRG) is located in the lateral epidural space just under the pedicle of the vertebrae. This anatomical structure consists of a cluster of nerve cell bodies that are responsible for transmitting sensory information from the periphery to the central nervous system. The position of the DRG outside the spinal cord, yet closely associated with the spinal nerves as they exit the vertebral column, facilitates its role in sensory pathways. By being positioned in the lateral epidural space, the DRG can efficiently receive and relay sensory signals without interference from other structures within the spinal canal.

The dorsal root ganglion (DRG) is located in the lateral epidural space just under the pedicle of the vertebrae. This anatomical structure consists of a cluster of nerve cell bodies that are responsible for transmitting sensory information from the periphery to the central nervous system. The position of the DRG outside the spinal cord, yet closely associated with the spinal nerves as they exit the vertebral column, facilitates its role in sensory pathways. By being positioned in the lateral epidural space, the DRG can efficiently receive and relay sensory signals without interference from other structures within the spinal canal.