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The vestibulospinal tract is a nerve tract in the central nervous system. Specifically, it is a component of the extrapyramidal system and is classified as a component of the medial pathway. Like other descending motor pathways, the vestibulospinal fibers of the tract relay information from nuclei to motor neurons. [ 1 ]
The cause is the red nucleus, via the rubrospinal tract, counteracting the extensor motorneuron's excitation from the lateral vestibulospinal and reticulospinal tracts. Because the rubrospinal tract only extends to the cervical spinal cord, it mostly acts on the arms by exciting the flexor muscles and inhibiting the extensors, rather than the legs.
reticulospinal tract: connects the reticular system, a diffuse region of gray matter in the brain stem, to the spinal cord. It also contributes to muscle tone and influences autonomic functions. lateral vestibulospinal tract: Connects the brain stem nuclei of the vestibular system with the spinal cord. This allows posture, movement, and balance ...
Medial vestibulospinal tract; Reticulospinal tract; Lateral raphespinal tract; Alpha system; Gamma system; Somatosensory system. Dorsal column–medial lemniscus pathway.
rubrospinal tract: from red nucleus to lower motor neurons: Involved in involuntary adjustment of arm position in response to balance information; support of the body. vestibulospinal tract: from vestibular nuclei, which processes stimuli from semicircular canals: It is responsible for adjusting posture to maintain balance. reticulospinal tract
The lateral vestibulospinal tract is one of the descending spinal tracts of the ventromedial funiculus.. The lateral part of the vestibulospinal tract is the major portion and is composed of fibers originating in the lateral, superior, and inferior vestibular nuclei (primarily the lateral).
The tectospinal, rubrospinal, vestibulospinal, and reticulospinal tracts are extrapyramidal tracts controlling involuntary movement. Mammals possess hundreds of thousands of descending neurons. [ 1 ] [ 2 ] They can be divided functionally into two major pathways: pyramidal tracts , which originate in the motor cortex, and extrapyramidal tracts ...
The medial part of the vestibulospinal tract is the smaller part, and is primarily made of fibers from the medial vestibular nucleus. It projects bilaterally down the spinal cord and triggers the ventral horn of the cervical spinal circuits, particularly controlling lower motor neurons associated with the spinal accessory nerve (CN XI).