- The axons of the upper motor neuron pass through the posterior limb of the internal capsule. From there, they continue through the central part of the brain, longitudinal pontine fibers, and finally through the cerebral peduncle into the pyramid.
- It is at this location that most of them in the opposite direction of the body form the lateral corticospinal tract in the upper and lower parts of the spinal cord.
- The lateral corticospinal tract is the longest descending pathway, located in the lateral fungi. This pathway will sink directly into the motor neuron into the anterior horn of the spinal cord.
Some additional interesting points:-
IMN, the medical abbreviation-
Ischemic monomeric neuropathy is an infinite problem that usually occurs after acute arterial occlusion or reduced blood flow to one extreme.
It is primarily a distal vein problem in the extremities, considered as a term about many distal focal mononeuropathies involving sensory and motor branches.
This condition usually involves axonal nerve injury and is not a demilitarizing process. Reversible motor conduction blocks reported early in the course of IMN, but this block does not occur later in the disease.
It also plays a role in the somatic reflex arc. When the muscle spindle detects a sudden stretch, a signal goes under the afferent nerve fibers.
These nerve fibers either sink directly onto the alpha motor neuron or onto the interneuron, which then syncs with the alpha motor neuron. The reduced motor neuron infects the effector muscle, allowing for an accelerated muscle response.
A reflex arc helps the brain to quickly interpret and react to stimuli through the spinal cord, passing the brain for rapid response.
In the end:-
This is not the summary, but a brief. Lower motor neuron, that sends motor axons outside the neuraxis to peripheral nerves, both the cranial and spinal cord. They are designated second-order neurons.
By this, we meant that the peripheral nerves, both the cranial and spinal cord, function as a final pathway for all complex motor interactions occurring in neuraxis above the level of the lower motor neurons.
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