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The dorsal root ganglion, more recently referred to as the spinal ganglion, is a collection of neuronal cell bodies of sensory neurons. It is the most common type of sensory ganglion in the human body. Each cell body in the ganglion belongs to what is considered to be a pseudounipolar neuron.
Location. The dorsal root ganglia lie in the intervertebral foramina. The anterior and posterior spinal nerve roots join just beyond (lateral) to the location of the dorsal root ganglion. Development. The dorsal root ganglia develop in the embryo from neural crest cells, not neural tube.
Dorsal nerve roots carry sensory neural signals to the central nervous system (CNS) from the peripheral nervous system (PNS). Anatomically, a dorsal root ganglion (DRG) emerges from the dorsal root of the spinal nerves (see Image. Dorsal Root Ganglion and Proximal Nerve Roots in the Spinal Foramen).
Dorsal root ganglia are located near the spinal cord. Each spinal nerve has a pair of dorsal root ganglia lateral to the spinal cord. The posterior, or dorsal, root emerges from the intervertebral neural foramen or the bony opening between two adjacent spinal vertebrae .
Dorsal root ganglia are the most common type of sensory ganglia. As their name suggests, they are found in the posterior (dorsal) root of spinal nerves, following the emergence of the dorsal root that emerges from the intervertebral neural foramina.
The dorsal root ganglion (DRG) is a key structure in the mechanism of symptomatic radicular pain, weakness and change in sensation. DRG localization can assist in the decision making process of which areas require decompression, and type of procedure that should be performed to treat radicular symptoms.
The dorsal root ganglia (spinal ganglia) are usually located within the intervertebral foramina, immediately outside the points where the nerve roots perforate the dura mater.
Dorsal root ganglia are normally localized within, or close to, intervertebral foramina, the openings between the pedicles of vertebrae that allow peripheral structures to connect with the vertebral canal.
Dorsal nerve roots carry sensory neural signals to the central nervous system (CNS) from the peripheral nervous system (PNS). Anatomically, a dorsal root ganglion (DRG) emerges from the dorsal root of the spinal nerves (see Image.
A dorsal root ganglion is a collection of primary sensory neurons. The central and peripheral processes of these cell bodies form the sensory connection between the nervous system and the periphery. The generally held vision that one spinal DRG is related to one dermatome is difficult to attain.