reticular formation


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reticular formation

n.
A diffuse network of white longitudinal nerve fibers interspersed with gray matter, located in the brainstem, that regulates various autonomic functions, such as sleep and waking.

retic′ular forma′tion


n.
a network of neurons in the brainstem involved in consciousness, breathing, and the transmission of sensory stimuli to higher brain centers.
[1885–90]

reticular formation

A system of nerve cells in the brain stem, controlling consciousness.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.reticular formation - a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone
brain stem, brainstem, brain-stem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
neural net, neural network - any network of neurons or nuclei that function together to perform some function in the body
RAS, reticular activating system - the network in the reticular formation that serves an alerting or arousal function
References in periodicals archive ?
The contralateral response, R2c, reflects the crossing of the brainstem in the medulla and progresses through the reticular formation to elicit a response at the contralateral facial nucleus (7-9).
The central generator of the R1 is located in the pons, whereas the R2 pathway involves numerous synapses bilaterally in the brainstem reticular formation from the pons to the medulla.
Lesions can involve the substantia nigra, periaqueductal gray matter within the midbrain, inferior colliculus, inferior olivary nuclei, inferior cerebellar peduncles, medulla, solitary tract in the medulla, central tegmental tract and reticular formation in the dorsal pons.
The orbitofrontal cortex of the frontal lobe mediates response inhibition, impulse control, social behavior, emotional regulation and generalized arousal through limbic nuclei, the dorsal medial nuclei of the thalamus, and reticular formation.
Activation by attention of the human reticular formation and thalamic intralaminar nuclei.
The central pattern generator of the hiccup reflex seems to be in the reticular formation of the brainstem [3].
Those PMNs that project to muscles used in swallowing have been localized within the nucleus of the tractus solitaries (NTS) and its adjacent reticular formation, and they are synaptically linked to both peripheral afferents and cortical swallowing areas.
2] In non-alcoholic WE, the cerebellar vermis, midbrain reticular formation and caudate nuclei are frequently involved.
Centrally, phenothiazines mediate their effects via dopamine blockade particularly in the reticular formation.
1-3) Some unusual symptoms are potentially linked to different brain arrangements, such as visuovestibular and pontinomedullary reticular formation interactions, evoking a wide range of phenomena, including disturbance of balance, bodily orientation, chronic pain syndrome, decomposition of motion and dysfunctional motor patterns.
It descends through the reticular formation of the brainstem and travels to the ciliospinal centre of Budge between the levels of the eighth cervical and fourth thoracic vertebrae (C8-T4).
Cerebral cortex [] * Occipital lobe [] * Cerebellum [] * Reticular formation [] * Hypothalamus [] 3.