Search results
Results From The WOW.Com Content Network
The globus pallidus (GP), also known as paleostriatum or dorsal pallidum, [1] is a major component of the subcortical basal ganglia in the brain. It consists of two adjacent segments, one external (or lateral), known in rodents simply as the globus pallidus , and one internal (or medial).
The names given to the various nuclei of the basal ganglia are different in different species. In cats and rodents the internal globus pallidus is known as the entopeduncular nucleus. [63] In birds the striatum is called the paleostriatum augmentatum and the external globus pallidus is called the paleostriatum primitivum.
Through various pathways, the putamen is connected to the substantia nigra, the globus pallidus, the claustrum, and the thalamus, in addition to many regions of the cerebral cortex. A primary function of the putamen is to regulate movements at various stages such as in preparation and execution; and to influence various types of learning.
Latin/Greek Language English Example Search for titles containing the word or using the prefix: acanthus etc.: G ἄκανθος (ákanthos): thorny, spiny: Acanthus plant; Parorchis acanthus, a flatworm
The internal globus pallidus (GPi) or medial globus pallidus is only found in the primate brain and so is a younger portion of the globus pallidus. Like the GPe and the substantia nigra the GPi is a fast-spiking pacemaker but its activity does not show the long intervals of silence seen in the others.
Dysfunction of the internal globus pallidus has been correlated to Parkinson's disease, [6] Tourette syndrome, [7] and tardive dyskinesia. [8] The internal globus pallidus is the target of deep brain stimulation (DBS) for these diseases. Deep brain stimulation sends regulated electrical pulses to the target.
The external globus pallidus is the segment of the globus pallidus that is relatively further (lateral) from the midline of the brain. The GPe is predominantly composed of inhibitory GABAergic neurons that project axons to the subthalamic nucleus (in the diencephalon), the striatum, internal globus pallidus (GPi) and substantia nigra pars ...
The lentiform nucleus (or lentiform complex, lenticular nucleus, or lenticular complex) are the putamen (laterally) and the globus pallidus (medially), collectively. Due to their proximity, these two structures were formerly considered one, however, the two are separated by a thin layer of white matter—the external medullary lamina—and are functionally and connectionally distinct.