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Confocal microscopy Z projection of medium spiny neurons (MSNs) in the mouse striatum. The neurons were labeled using the matrisome MSN mouse Gpr101-Cre [8] in combination with a dtTomato (red fluorescent protein) reporter. A 3D projection of the same neurons can be viewed here.
Dendritic spines on medium spiny neuron of striatum. Types of cells in the striatum include: Medium spiny neurons (MSNs), which are the principal neurons of the striatum. [2] They are GABAergic and, thus, are classified as inhibitory neurons. Medium spiny projection neurons comprise 95% of the total neuronal population of the human striatum. [2]
Projection fibers consist of efferent and afferent fibers uniting the cortex with the lower parts of the brain and with the spinal cord. In human neuroanatomy, bundles of axons (nerve fibers) called nerve tracts , within the brain, can be categorized by their function into association tracts , projection tracts , and commissural tracts .
A reconstruction of a pyramidal cell. Soma and dendrites are labeled in red, axon arbor in blue. (1) Soma, (2) Basal dendrite, (3) Apical dendrite, (4) Axon, (5) Collateral axon. One of the main structural features of the pyramidal neuron is the conic shaped soma, or cell body, after which the neuron is named.
The output neurons of the nucleus accumbens send axonal projections to the basal ganglia and the ventral analog of the globus pallidus, known as the ventral pallidum (VP). ). The VP, in turn, projects to the medial dorsal nucleus of the dorsal thalamus, which projects to the prefrontal cortex as well as back to the ventral and to dorsal stri
The interneurons found in the stratum lucidum are of two classes, spiny and aspiny. Spiny neurons are a "special type of inhibitory cell", characterized by spiny projections on the dendrites of the cell. The axons of these neurons in the hippocampus terminate primarily in the stratum lucidum and stratum radiatum of CA3.
Spinal neurons are specialized nerve cells located within the spinal cord. [1] They are a crucial component of the central nervous system.These neurons play vital roles in transmitting and processing information between the brain and the rest of the body.
A neuron, neurone, [1] or nerve cell is an excitable cell that fires electric signals called action potentials across a neural network in the nervous system.They are located in the brain and spinal cord and help to receive and conduct impulses.