Reticulospinal tract is a descending tract present in the white matter of the spinal cord, originating in the reticular formation (the archaic core of those pathways connecting the spinal cord and the brain).

2023年11月3日 · Extending from the medial zone of the pontine and medullary reticular formations, through the spinal cord, and finally terminating on the limb flexors and extensors, the reticulospinal tract controls locomotion and posture.

2020年2月14日 · The reticulospinal tract is considered to be one of the most important extra-pyramidal tracts for controlling the activity of lower motor neurons. It can influence the activities of the alpha and gamma motor neurons through internuncial neurons.

The reticulospinal tracts, are extrapyramidal motor tracts that descend from the reticular formation [42] in two tracts to act on the motor neurons supplying the trunk and proximal limb flexors and extensors.

In this review article, we first discuss nomenclature of the RF, and then examine the reticulospinal motor command system through evolution. These command neurons have direct monosynaptic connections with spinal interneurons and motoneurons.

The reticulospinal tract refers to a pathway that originates in the precentral gyrus and synapses in the reticular formation of the brain stem before descending to the spinal cord. It primarily has an inhibitory effect on the alpha and gamma motor neurons.

2023年7月24日 · The reticulospinal tracts project to spinal cord motor neurons and help to modulate tone, balance, posture, and coordination of body movements with the assistance of other sensory stimuli, such as visual, auditory, vestibular, and proprioceptive information.

Overall, the RST has an important role for motor recovery, gross motor function and at least in part, underpins strength gain. The role of RST for strength gain in healthy people and its involvement in spasticity in a clinical population has been limitedly described.

This article describes the origins of the reticulospinal tracts in the brain stem, their location and terminations in the spinal cord, the sources of input to the reticulospinal system, and reticulospinal functions in control of movement.

The primate reticulospinal tract is usually considered to control proximal and axial muscles, and to be involved mainly in gross movements such as locomotion, reaching and posture. This contrasts with the corticospinal tract, which is thought to be involved in fine control, particularly of independent finger movements.