The spinal nerves are made of high-quality PVC material and magnified 5 times.
The anterior root is active and the posterior root has sensation. The posterior root is slightly thicker than the anterior root. Mixed with motor fibers and placed in a dry place
Each pair of spinal nerves is connected to the spinal cord through the ventral root and dorsal root. The anterior root and the posterior root are composed of root filaments composed of many nerve fiber bundles
There are 31 pairs of spinal nerves related to the spinal cord, distributed in the fuselage, abdomen and extreme muscles, responsible for sensation and movement below the neck
It can be used as a school teaching tool, learning display and collection, and is also an important supplement to laboratory supplies