Each spinal nerve attaches to spinal cord by a ventral (anterior) root and a dorsal (posterior) root.
All spinal nerves are mixed nerves (both motor and sensory).
Spinal nerve.....
From the posterior root ganglion to the anterior horn of the spinal cord.
The medical code for root canal Anterior is D3310.
The dorsal column or medial lemniscus.
The anterior or ventral roots carry motor or efferent information from motoneurons in the anterior horn to muscles. This is as opposed to the dorsal roots that convey sensory or afferent informaiton from the periphery to the dorsal horns of the spinal cord. This is not to be confused with ventral rami that subserve intrinsic muscles of the back and neck. Therefore if a ventral root is severed or cut there would be a loss on motor function to muscles in the distribution of that root (called a myotome).
bleh ;D
motor fibers
dorsal root ganglion
Posterior root
anterior root
Neurosomas of the anterior root are located within the grey matter of the spinal cord. They consist of cell bodies of motor neurons that project their axons out of the spinal cord to innervate muscles and glands.
somatic motor axons