descending tracts are found in the spinal cord at rubrospinal tract.
descending tracts are found in the spinal cord at rubrospinal tract.
where are descending tracts found in the spinal cord?
rubrospinal tract
nerve tracts are bundles of axons as white matter, that carry action potentials to their effectors. in the spinal cord these descending tracts carry impulses from different regions. these tracts also serve as the place of origin for lower motor neurons. there are seven major descending motor tracts to be found in the spinal cord:









































bullet::::- lateral corticospinal tract









































bullet::::- rubrospinal tract









































bullet::::- lateral reticulospinal tract









































bullet::::- vestibulospinal tract









































bullet::::- medial reticulospinal tract









































bullet::::- tectospinal tract









































bullet::::- anterior corticospinal tract









































section::::anatomy and physiology.:lower motor neurons.
motor neuron
motor information travels from the brain down the spinal cord via descending spinal cord tracts. descending tracts involve two neurons: the upper motor neuron (umn) and lower motor neuron (lmn). a nerve signal travels down the upper motor neuron until it synapses with the lower motor neuron in the spinal cord. then, the lower motor neuron conducts the nerve signal to the spinal root where efferent nerve fibers carry the motor signal toward the target muscle. the descending tracts are composed of white matter. there are several descending tracts serving different functions. the corticospinal tracts (lateral and anterior) are responsible for coordinated limb movements.
spinal cord