The medial vestibular nucleus (Schwalbe nucleus) is one of the
vestibular nuclei
The vestibular nuclei (VN) are the cranial nuclei for the vestibular nerve located in the brainstem.
In Terminologia Anatomica they are grouped in both the pons and the medulla in the brainstem.
Structure Path
The fibers of the vestibular nerve ...
. It is located in the
medulla oblongata
The medulla oblongata or simply medulla is a long stem-like structure which makes up the lower part of the brainstem. It is anterior and partially inferior to the cerebellum. It is a cone-shaped neuronal mass responsible for autonomic (involun ...
.
Lateral vestibulo-spinal tract (lateral vestibular nucleus “Deiters”)- via
ventrolateral medulla The ventrolateral medulla, part of the medulla oblongata of the brainstem, plays a major role in regulating arterial blood pressure and breathing. It regulates blood pressure by regulating the activity of the sympathetic nerves that target the hear ...
and spinal cord to ventral funiculus (lumbo-sacral segments). ..Ipsilaterally for posture
Medial vestibulo-spinal tract (medial, lateral, inferior, vestibular nuclei), bilateral projection via descending
medial longitudinal fasciculus
The medial longitudinal fasciculus (MLF) is an area of crossed over tracts, on each side of the brainstem. These bundles of axons are situated near the midline of the brainstem. They are made up of both ascending and descending fibers that ari ...
to cervical segments. DESCENDING MLF..Bilaterally for head/neck/eye movements
It is one of the nuclei that corresponds to CN VIII, corresponding to the
vestibular nerve
The vestibular nerve is one of the two branches of the vestibulocochlear nerve (the cochlear nerve being the other). In humans the vestibular nerve transmits sensory information transmitted by vestibular hair cells located in the two otolith organ ...
, which joins with the
cochlear nerve
The cochlear nerve (also auditory nerve or acoustic nerve) is one of two parts of the vestibulocochlear nerve, a cranial nerve present in amniotes, the other part being the vestibular nerve. The cochlear nerve carries auditory sensory information ...
.
It receives its blood supply from the
Posterior Inferior Cerebellar Artery
The posterior inferior cerebellar artery (PICA) is the largest branch of the vertebral artery. It is one of the three main arteries that supply blood to the cerebellum, a part of the brain. Blockage of the posterior inferior cerebellar artery can r ...
, which is compromised in the
lateral medullary syndrome
Lateral medullary syndrome is a neurological disorder causing a range of symptoms due to ischemia in the lateral part of the medulla oblongata in the brainstem. The ischemia is a result of a blockage most commonly in the vertebral artery or the p ...
.
See also
*
Vestibular nerve
The vestibular nerve is one of the two branches of the vestibulocochlear nerve (the cochlear nerve being the other). In humans the vestibular nerve transmits sensory information transmitted by vestibular hair cells located in the two otolith organ ...
*
Vestibular system
The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes ...
References
External links
* https://web.archive.org/web/20111109232230/http://www.neuroanatomy.wisc.edu/virtualbrain/BrainStem/13VNAN.html
Cranial nerve nuclei
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