relating to or denoting nerves concerned with motor activity that descend from the cortex to the spine and are not part of the pyramidal system.
Most commonly, it stands for extrapyramidal symptoms.
cerebellum
Extrapyramidal symptoms (EPS)-- A group of side effects associated with antipsychotic medications. EPS include parkinsonism, akathisia, dystonia, and tardive dyskinesia.
According to the affected brain area, MJD is classified as Type I, with extrapyramidal insufficiency; Type II, with cerebellar, pyramidal, and extrapyramidal insufficiency; and Type III, with cerebellar insufficiency.
Neurological symptoms in patients affected with LBD include extrapyramidal features early in the disease. The extrapyramidal symptoms in LBD can be differentiated from other dementias such as Parkinson's disease
reticular formation
It is extrapyramidal,not pyramidal, impulses that produce the smiles or frowns.
Extrapyramidal pathway
Extrapyramidal symptoms are a reason
The disease involves the slow and progressive degeneration of brain areas involved in motor coordination, such as the cerebellar, extrapyramidal, pyramidal, and motor areas
The Similarity: Pyramidal and extra-pyramidal system are the descending tracts (motor tracts) of spinal cord.The Difference:1) Their tracts -Pyramidal system = lateral and anterior corticospinal tracts + corticobulbar tractExtra-pyramidal system = rubrospinal + olivospinal + lateral and medial reticulospinal + tectospinal + vestibulospinal tracts2) "Extrapyramidal tracts" don't reach their targets by traveling through the "pyramids of medulla". Pyramidal tracts go through the pyramids of medulla.3) Pyramidal tracts may directly innervate motor neurons of spinal cord or brainstem (anterior horn cells or certain cranial nerve nuclei). But, extrapyramidal tractsindirectly control the anterior horn cells (for modulation and regulation)4) Pyramidal system is responsible for fine, isolated, precise and specific movements. Extrapyramidal system is responsible for gross, syngergic movements which require the activity of large groups of muscles
Benztropine is a centrally acting anticholinergic drug which also posesses some antihistaminic properties as well. It is often used in the treatment of Parkinson's disease as well as acute extrapyramidal reactions.