Answer:
motor Nerves.
Explanation:
These are bundles of axon of the spinal cord located in the CNS. They originated at the motor cortex of the brain.
They conduct response signals out of the CNS through the spinal cord to reach the effector(muscles).These signals pass through the brain stem and the spinal cord ipsillaterially, to emerge at the ventral side of the spinal cord to terminate at the skeletal muscles or the smooth muscles.
The bundles of AXON are called FASICICLES
They are bundle of axons which transduce signals from the CNS to peripheral neurons of the muscles of the body.They are different from the motor neuron which have their cell bodies in the spinal cord and dendrites at the terminal ends.
However, they communicated with the muscles they innervated through the motor neuron at the terminal.
They have high concentration of neurotransmitter acetylcholine vesicles for chemical transmission at synapse, and calcium ion in the presynaptic motor nerves for migration of the vesicles for increasing the size of end-plate potential
