Dorsal root of spinal nerve
| Dorsal root of spinal nerve | |
|---|---|
 The formation of the spinal nerve from the dorsal and ventral roots | |
| Details | |
| Identifiers | |
| Latin | radix posterior nervi spinalis |
| TA98 | A14.2.00.030 |
| TA2 | 6146 |
| FMA | 5980 |
| Anatomical terminology | |
The dorsal root of spinal nerve (or posterior root of spinal nerve or sensory root)afferent sensory root of a spinal nerve.
Structure
The root emerges from the
cell bodies of the nerve
fibres which travel from the ganglia through the root into the spinal cord.
The
anterolateral system in the lateral funiculus
.
The medial division of the dorsal root contains myelinated fibres of larger diameter[posterior column–medial lemniscus pathway.
If the dorsal root of a spinal nerve were severed, it would lead to numbness in certain areas of the body.
Additional images
-
Cervical vertebra -
Medulla spinalis -
A spinal nerve with its anterior and posterior roots. -
The sensory tract. -
Diagrammatic transverse section of the medulla spinalis and its membranes. -
A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots. -
Scheme showing structure of a typical spinal nerve.
See also
- Ventral root
References
- ^ "Spinal Nerves - an overview". ScienceDirect Topics. Archived from the original on May 6, 2021. Retrieved 2021-05-06.
External links
- Anatomy figure: 02:04-06 at Human Anatomy Online, SUNY Downstate Medical Center - "Superior view of a section through the spinal cord within the vertebral foramen."
- Anatomy Atlases – Microscopic Anatomy, plate 06.114 - "Spinal Root Nerve Fibers"
- Dorsal root - Cell Centered Database
