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Principal neuron

Name: Principal neuron
Description: A neuron with role projection neuron role, i.e., a neuron whose axon projects out of the brain region in which its soma lies
Synonym(s): Projection neuron, principal cell
Super-category: Defined neuron class
Id: nlx_cell_1003112
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  • This table is generated programmatically from the property "Role" assigned to members of the Neuron class. To add to this list, go to the category page for the type of neuron you are interested in adding and add "Principal neuron role" to the "Has role" field in the Petilla form.

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Detail

Id Neurotransmitter Synonym Definition Located in
Accessory nucleus motor neuron nlx_83979 Acetylcholine spinal accessory nerve
acessory nucleus motor cell
11th nerve motor neuron
XIth nerve motor neuron
Motor neuron whose cell soma lies within the Acessory nucleus.
Amygdala basolateral nuclear complex pyramidal neuron nifext_152 Glutamate Pyramidal cell basolateral amygdalar nucleus
Amygdala basolateral nucleus pyramidal neuron
These neurons make up ~80-85% of neurons in the basolateral nuclear complex of the amygdala. Unlike cortical pyramidal cells, they are not arranged with parellel apical dendrites but are randomly organized. Basolateral nuclear complex
Amygdala intercalated nuclei small spiny neuron nlx_149095 GABA paracapsular intercalated cell (ITC) Small spiny principal neurons of the intercalated nuclei. These nuclei are clusters of neurons surrounding rostral portions of the basolateral nuclear complex. Some of these clusters are located adjacent to the external capsule or intermediate capsule (paracapsular intercalated nuclei). Intercalated amygdaloid nuclei
Amygdala lateral central nucleus medium spiny neuron nlx_149094 GABA Medium-sized, multipolar, principal neuron found in lateral portions of the central nucleus. It has very spiny dendrites and closely resembles the medium spiny neuron of the adjacent striatum. Central amygdaloid nucleus
Antennal lobe (Honey bee) principal neuron nlx_151564 Acetylcholine Antennal lobe principal neuron Projection neuron of the honey bee, Apis mellifera,whose soma is located on the rind of the antennal lobe.The axons of uniglomerular projection neurons project to the mushroom body calyx and to the lateral horn in the protocerebral lobe.The axons of the multiglomerular projction neurons project to the protocebral lobe only. Antennal lobe rind
Antennal lobe (Manduca) principal neuron nlx_151688 Acetylcholine uniglomerular projection neuron
medial-antenno-protocerebral-tract projection neuron
inner-antennocerebral-tract projection neuron
uniglomerular principal neuron in the antennal lobe of the tobacco hornworm moth, in neuronal cell groups on the border of the antennal lobe, mainly medial and anterior cell groups. It likely uses acetylcholine as a transmitter. The axon projects to lateral protocerebrum with collaterals in the mushroom body. Antennal lobe
Cerebellum Purkinje cell sao471801888 GABA Purkinje neuron
Purkinje's corpuscles
Cerebellar Purkinje neuron
Purkinje Cell
Purkyne cell
Corpuscles of Purkinje
cerebellar purkinje cell
Principal neuron (projection neuron) of the cerebellar cortex; cell bodies arranged in a single layer; characterized by a pear-shaped cell body, 1 (rarely 2) primary dendrites and an elaborate dendritic tree heavily invested with dendritic spines. Purkinje cell layer of cerebellar cortex
Cochlea inner hair cell sao429277527 Glutamate Cochlear Inner Hair Cell
Inner Hair Cell
Cochlea hair cell inner
A pear-shaped epithelial cell that is medially placed re: the inner pillar and forms a single row within the organ of Corti. Resting potential is modulated by perturbations in stereocilia located at the apical pole of the cell. In contrast to outer hair cells, the inner hair cells are fewer in number, have fewer stereocilia, and are less differentiated. They do, however, receive ~95% of the auditory-nerve dendrites. Although a single auditory nerve fiber innervates several outer hair cells, each inner hair cell receives several more heavily myelinated, auditory-nerve dendrites. Neurotransmitter release activates the auditory nerve, which leads to the cochlear nucleus within the central auditory pathway.(MSH) Spiral organ of Corti
Cochlea outer hair cell sao1582628662 Glutamate
Aspartate
Cochlear Outer Hair Cell
Outer Hair Cell
In mammals, the outer hair cells are arranged in three rows that are further removed from the modiolus than the single row of inner hair cells. Although receiving only ~5% of the innervating auditory nerve dendrites, the motile properties of the outer hair cells actively contribute to the sensitivity and frequency selectivity of the cochlea. The process of somatic electromotility, due to the presence of the motor protein, prestin, is essential for normal cochlear function. Outer hair cell function is also directly influenced by efferent input from the medial superior olivary complex. (MSH) Cochlea
Spiral organ of Corti
Cochlear nucleus (dorsal) giant cell nifext_75 Likely glutamate None Large multipolar cells located in the deep layer of the dorsal cochlear nucleus. Like the pyramidal (fusiform) cells, a principal neuron of the DCN. Their dendrites, branching sparsely across isofrequency bands, are smooth until they reach the molecular layer, where the tips are spiny. The axons join pyramidal cell axons to form the DAS (dorsal acoustic stria) through which they project to the contralateral inferior colliculus. Deep layer of the dorsal cochlear nucleus
Cochlear nucleus (ventral) globular bushy cell nifext_70 Glutamate The distinction between globular and spherical bushy cells was originally reported by Osen on the basis of a difference in the shape of the cell bodies. Globular bushy cells lie in and around the root of the auditory nerve. Their axons project to the contralateral medial nucleus of the trapezoid body (MNTB), innervating principal cells with a calyx of Held. Ventral cochlear nucleus
Cochlear nucleus (ventral) multipolar T cell nifext_68 Glutamate T multipolar cell
T stellate cell
type I
chopper
planar multipolar
Principal cells of the ventral cochlear nucleus are named for having the axon exit the cochlear nucleus through the Trapezoid body. A band of dendrites in an isofrequency lamina receives input from a small number of auditory nerve fibers. Sharp tuning is enhanced by sideband inhibition. The population of T stellate cells encodes the spectra of sounds. Ventral cochlear nucleus
Cochlear nucleus (ventral) octopus cell nifext_72 Glutamate Ventral cochlear nucleus octopus cell
octopus cell
Large neuron located in the octopus cell area of the posterior division of the ventral cochlear nucleus (called dorsal tail of the ventral cochlear nucleus by Cajal and nucleus interfascicularis by Lorente de No), whose dendrites emanate from one side of the cell body, giving them a shape reminiscent of an octopus. Cochlear nuclear complex
Ventral cochlear nucleus
Octopus cell area
Dorsal tail of ventral cochlear nucleus
Nucleus interfascicularis
Cochlear nucleus (ventral) spherical bushy cell nlx_cell_20081201 Glutamate Bushy neuron
Bushy cell
ventral cochlear nucleus bushy cell
Bushy cells in the anteroventral cochlear nucleus have one to four primary dendrites which branch profusely, giving them a "bushy" appearance. They project to the superior olivary nuclei. They carry information that is used to localize sounds in the azimuthal plane. Three types of bushy cells differ in the shapes of their somata and in their patterns of projection. The cell somata of these neurons have been described as "spherical" in the anterior division of the AVCN and "globular" in the posterior division of the AVCN. Large spherical bushy cells project to the medial superior olivary nuclei bilaterally, globular bushy cells project to the contralateral medial nucleus of the trapezoid body. Small spherical bushy cells project to the vicinity of the ipsilateral lateral superior olivary nucleus but it is not yet clear which cells are their targets. Their inputs from the spiral (cochlear) ganglion arise via the end bulbs of Held. Ventral cochlear nucleus
Colliculus Inferior GABAergic Principal Cell nlx_60854 GABA large GABAergic (LG) neurons Winer and colleagues (1996) first described that GABAergic neurons project to the medial geniculate body in cat. Peruzzi et al. (1997) showed that the cell type is also found in rats, and sends action potentials more rapidly than glutamatergic IC neurons. Ito and colleagues (2009) showed that the cell type is the largest neuron in the IC and receives dense VGLUT2-positive axosomatic terminals on the cell body. Other cell types such as glutamatergic neurons and small GABAergic neurons do not have such endings. Inferior colliculus
Colliculus inferior principal cell nifext_82 Glutamate Inferior colliculus principal neuron Around 80% of neurons in the inferior colliculus (IC) is glutamatergic (Ito and Oliver, 2012). They express vesicular glutamate transporter (VGLUT) 2 but not VGLUT1 or VGLUT3 (Ito and Oliver, 2010, 2011). Their main target is the medial geniculate body although they send axons to most auditory brainstem nuclei. Since majority of IC neurons are disc-shaped, which extend their dendrite parallel to isofrequency laminae (Oliver, 1984), majority of glutamatergic neurons are likely to be disc-shaped. Stellate neurons, which are less common and extend dendrite perpendicular to isofrequency laminae, also project to the medial geniculate body (Oliver, 1984). Inferior colliculus
Colliculus superior stellate neuron BAMSC1129 stellate neuron The third major category of cells in the superior colliculus is the stellate cell. The cells are defined by the lack of overall orientation to the dendritic fields which extend symmetrically from the cell body. Stellate cells are multipolar with dendrites arising from any portion of the cell body. The dendrites may range anywhere from gnarled to radiate with the gnarled spiny cells most frequent in the zone of horizontal cells and the smooth radiate cells increasingly more frequent in the deeper zones until they are almost the only cell type in the zones below the stratum opticum. The dimensions of the cell bodies and dendritic fields are comparable to those of other cells in the same zone and the dendritic field is generally contained within the same zone as the cell body. The axons of stellate cells have both local and/or distant distributions and a morphology characteristic of intrinsic axons. As with all the other cell types, the axon may take its origin from the cell body or a low order dendrite. Superior colliculus
Colliculus superior wide field vertical cell BAMSC1125 wide field vertical cell There are two similar populations in the group of wide field vertical cells. The first lies in the deep margin of the zone of vertical cells where it looks very similar to the piriform cells relative to the zone of horizontal cells. Cajal called these the ovoid or triangular cells. The second population has its cell bodies distributed primarily to the upper portion of the zone of optic fibers. Cajal called these triangular or stellate cells. Cajal's nomenclature is rather bulky and, though descriptive, somewhat confusing because stellate cells are a distinct cell type in the nomenclature of this paper and triangular occurs in both names. For reasons developed below, the ovoid or triangular cells or wide field cells of the zone of vertical cells will be called Type II ganglion cells and the triangular or stellate cells or wide field cells of the zone of optic fibers will be called Type III ganglion cells. Type I ganglion cells are the piriform cells. Collator note: we assumed this class of neurons as projection neurons, because at least several subpopulations project to visually related areas. See Sefton et al., 2005; Mason and Groos, 1981; Mackay to Sim et al. 1983; Okoyama and Kudo, 1987). Superior colliculus
Dorsal motor nucleus of vagus motor neuron nlx_38336 Acetylcholine Motor neuron whose cell soma lies within the dorsal motor nucleus of the vagus, the principal parasympathetic nucleus of the brain. Dorsal motor nucleus of vagus nerve
Facial nucleus motor neuron nlx_50129 Acetylcholine facial nucleus motor cell
7th nerve motor neuron
VIIth nerve motor neuron
Motor neuron whose cell soma lies within the facial nucleus. Facial nucleus
Globus pallidus principal cell nifext_149 GABA Large neuron of he globus pallidus, both internal and external segment, characterized by a large and fusiform or trangular cell soma with long, thick aspiny dendrites that may extend for over 1 mm. Globus pallidus
Grid cell nlx_144209 a neuron which fires when an animal is in any point of space which corresponds to a vertex of its triangular grid firing field. Entorhinal cortex
Head direction cell nlx_144208 Head-direction cell Neurons which fire when an animal's head is facing in a particular direction of horizontal plane, regardless of location, behavior or position of body Postsubiculum
Anterior Thalamus
Lateral mammillary nucleus
Hippocampus CA1 pyramidal cell sao830368389 Glutamate Hippocampal CA1 Pyramidal Neuron
CA1 pyramidal neuron
Hippocampal CA1 pyramidal cell
Pyramidal neuron with a soma located in hippocampal area CA1. It receives input from Schaffer collaterals of CA3 pyramidal neurons, and sends its axon to the subiculum and entorhinal cortex. CA1 stratum pyramidale
Hippocampus CA3 pyramidal cell sao383526650 Glutamate Hippocampal CA3 Pyramidal Neuron
CA3 pyramidal neuron
CA3 pyramidal cell
This is the major output neuron in area CA3 of the hippocampus. It receives input from mossy fibers of the dentate gyrus. Its axon projects to the contralateral hippocampus and subcortically to the septal nucleus, and sends axon collaterals called Shaffer collaterals to the nearby CA1 region. CA3 stratum pyramidale
Hypoglossal nucleus motor neuron nlx_cell_100311 Acetylcholine hypoglossal motor neuron
hypoglossal nucleus motoneuron
hypoglossal motoneuron
12th nerve motor neuron
XII nerve motor neuron
Motor neuron whose soma lies in the hypoglossal nucleus Hypoglossal nucleus
Locus coeruleus NA neuron nlx_cell_20090202 Norepinephrine Locus coeruleus noradrenergic neuron Locus ceruleus
Mauthner cell nlx_151908 Acetylcholine M-cell Giant reticulospinal neuron found in brainstem of most teleosts Brainstem
Neocortex polymorphic cell layer 5-6 nifext_51 polymorphic cell
Layer 5-6 polymorphic cell
Neocortex polymorphic neuron layer 5-6
Neocortex layer 5
Neocortex layer 6
Neocortex primary motor area pyramidal layer 2-3 cell nlx_151707 Glutamate Superficial cortical pyramidal cell This basic neuron type in the neocortex has a pyramidal-shaped cell body with apical and basal dendrites, with an axon that projects to other cortical areas as well giving rise to local collaterals. Neocortex layer 2
Neocortex layer 3
Neocortex primary motor area pyramidal layer 5 callosal cell nlx_152138 Glutamate This is a basic type of neocortical cell with a pyramidal shaped cell body and apical and basal spiny dendrites. Its axon gives off local collaterals and projects through the corpus callosum to the contralateral neocortex. It belongs to the group termed intra-telencepalic pyramidal cells. Neocortex layer 5
Neocortex primary motor area pyramidal layer 5 corticopontine-tectal cell nlx_152139 Glutamate This is a basic type of necortical cell with a pyramidal-shaped cell body and apical and basal spiny dendrites. Its axon projects subcortically to the midbrain tectum, and gives off local collaterals with the necortex. It belongs to the group termed infra-telencenphalic pyramidal cells. Neocortex layer 5
Neocortex primary motor area pyramidal layer 5 corticospinal cell nlx_151709 Glutamate Upper motor neuron
corticospinal neuron
Betz cell
This is a basic type of neocortical cell with a pyramidal-shaped cell body and apical and basal spiny dendrites. It has an axon that projects subcortically to the spinal cord, giving off collaterals to the thalamus, and local collaterals within the cortex. It belongs to the group termed infra-telencephalic pyramidal cells. Neocortex layer 5B
Neocortex primary motor area pyramidal layer 5 corticostriate cell nlx_152140 Glutamate Cortico-striate cell This is a basic type of neocortical cell with a pyramidal-shaped cell body and basal and apical spiny dendrites. Its axon projects to the neostriatum, and gives off local collaterals with the neocortex. It belongs to the group termed intra-telenchephalic. Neocortex layer 5
Neocortex primary visual area pyramidal layer 2-3 cell nlx_152226 Glutamate Visual cortex primary layer 2
Visual cortex primary layer 3
Neocortex primary visual layer 5 callosal cell nlx_143940 Neuron in lower layer 5 of primary visual cortex with pyramidal or ovoid soma that project via the corpus callosum to the opposite visual cortex. At the area 17/18 border, callosal neurons are distributed evenly throughout the depth of layer 5. These neurons do not send projections to either the pontine nuclei or the superior colliculus. Apical dendrites of these cells were never observed to extend above layer 4. Basal dendrites were restricted to layer 5 and upper part of layer 6. 2-6 primary basal dendrites originated from the base of the pyramid or ovoid cell body. Visual cortex primary layer 5
Neocortex primary visual layer 5 corticopontine/tectal pyramidal cell nlx_143938 Pyramidal neuron with soma located predominantly in the upper middle part of layer 5. These neurons have medium to large somas with 5 or 6 primary basal dendrites (4-7 primary basal dendrites) and a single apical dendrite ascending to layer 1. Double labeling experiments show that these cells send collaterals to the pontine nucleus and the superior colliculus. It is possible that all cells sending projections to these regions send collaterals, but the presence of populations of cells sending projections to only the superior colliculus or the pontine nuclei cannot be ruled out. Visual cortex primary layer 5
Neocortex pyramidal cell sao2128417084 Glutamate Neocortical pyramidal cell
Neocortical pyramidal neuron
Cortical pyramidal neuron
neocortex pyramidal neuron
Pyramidal neuron of the cerebral cortex (not including hippocampus or olfactory cortex). The pyramidal cell of the neocortex is located in layers 2-3 and 5-6, has a pyramidal-shaped cell body which gives off a number of laterally-directed basal dendrites and usually a single apical dendrite which ascends to branch and terminate in layer 1; these dendrites are covered in dendritic spines. Neocortex
Neocortex pyramidal cell layer 5-6 nifext_50 Glutamate deep pyramidal cell
Neocortex pyramidal neuron layer 5-6
Layer 5-6 pyramidal cell
layer 5 pyramidal neuron
layer 5 pyramidal cell
Tufted layer 5 (TL5) pyramidal neurons
The pyramidal cell of layer 5 of the neocortex has a pyramidal-shaped cell body which gives off a number of laterally-directed basal dendrites and usually a single apical dendrite which ascends to branch and terminate in layer 1; these dendrites are covered in dendritic spines. The axon descends through the internal capsule, giving off collaterals to the thalamus, to the medullary pyramids, where most of the axons cross controlaterally to descend and innervate the ventral horn of the spinal cord. Neocortex layer 5
Neocortex layer 6
Neocortex pyramidal layer 2-3 cell nifext_49 Glutamate corticocortical cell
superficial pyramidal cell
Neocortex pyramidal neuron layer 2-3
Layer 2-3 pyramidal cell
Neocortical pyramidal neuron: superficial
deep layer (layer 5
6) pyramidal cell
This basic excitatory neuron type has a pyramidal-shaped cell body, with apical and basal dendrites. Typically, there is an axon that projects to other cortical and/or subcortical areas, as well as giving rise to local collaterals. Neocortex
Neocortex layer 2
Neocortex layer 3
Neocortex layer 5
Neocortex layer 6
Neocortex layer 4
Neostriatum direct pathway spiny neuron nlx_149135 GABA Medium spiny neuron
Neostriatal spiny neuron
Medium-sized spiny neuron
Striatal spiny neuron
Striatal medium spiny neuron
The principal projection neuron of the caudate and putamen. Caudate nucleus
Putamen
Nucleus accumbens
Neostriatum indirect pathway spiny neuron nlx_149136 GABA Medium spiny neuron
Neostriatal spiny neuron
Medium-sized spiny neuron
Striatal spiny neuron
Striatal medium spiny neuron
The principal projection neuron of the caudate and putamen. Caudate nucleus
Putamen
Nucleus accumbens
Nucleus laminaris principal neuron nlx_151646 Glutamate Analogous to the Medial Superior Olive (MSO) in mammals The nucleus laminaris (NL) in birds is the third-order auditory neurons located in the brainstem, analogous to the medial superior olive (MSO) in mammals. Neurons in NL and MSO are structurally and biophysically specialized to compute interaural time differences (ITDs), time disparities in the arrival of signals between the two ears, using low-frequency sounds. ITDs are the primary binaural cues for sound localization and segregation in humans and other low-frequency hearing vertebrates. While commonly used laboratory mammals such as mice and rats are high-frequency listeners and have a poorly developed MSO circuit, the structurally and functionally similar circuit in the chicken brainstem provides a particularly useful vertebrate model for basic research of ITD computation, due to its simple anatomy, well-characterized development and cell biology, and importantly, as a genetic tractable system. Nucleus laminaris
Oculomotor nucleus motor neuron nlx_77027 oculomotor nucleus motor cell
3rd nerve motor neuron
IIIrd nerve motor neuron
Motor neuron whose cell soma lies within the oculomotor nucleus Oculomotor nuclear complex
Olfactory bulb (main) mitral cell nifext_120 Glutamate Mitral neuron Principal neuron located in the olfactory bulb in the mammalian central nervous system. The cell bodies are arranged in a thin layer between the granule cell layer and the external plexiform layer. Each mitral cell is usually characterized in the mammal by a single primary dendrite that traverses the external plexiform layer and terminates within an olfactory glomerulus in a tuft of branches which receives input from the axons of olfactory receptor neurons. Axons of the mitral cells project to a number of areas in the brain, including the piriform cortex, entorhinal cortex, olfactory tubercle, and amygdala. Olfactory bulb main mitral cell body layer
Olfactory bulb (main) tufted cell (middle) nifext_121 Glutamate Olfactory bulb (main) tufted cell (middle) Principal neuron located in the outer third of the external plexiform layer of the olfactory bulb in the mammalian central nervous system. Each tufted cell is characterized by usually a single short primary dendrite that traverses the outer external plexiform layer and terminates within an olfactory glomerulus in a tuft of branches, where it receives the input from olfactory receptor neuron axon terminals. Differentiated from external tufted cells. Axons of the tufted cells transfer information to a number of areas in the brain, including the piriform cortex, entorhinal cortex, olfactory tubercle, and amygdala. Shepherd, Shen, Greer. Olfactory bulb. In The synaptic organization of the brain, ed 5 New York: Oxford University Press, 2004. Olfactory bulb
Olfactory bulb (main) internal plexiform layer outer part
Olfactory cortex superficial pyramidal cell nlx_153867 Glutamate Small pyramidal neuron
Olfactory cortex pyramidal neuron
A cell with the classic pyramidal-shaped cell body and apical and basal dendritic trees, with cell body in layer IIb and superficial layer III of the piriform (olfactory) cortex. Its axon arises from the deeper aspect of the cell body and gives rise to collaterals which terminate within the layer III on local intrinsic cells, and also recur to layer III, II and Ib where they form association fibers that connect to the apical dendrites of pyramidal neurons and continue to become centrifugal fibers to the olfactory bulb. Olfactory cortex layer IIb and superficial III
Olfactory cortex
Anterior piriform cortex
Retina On-Midget Ganglion Cell nlx_144271 Glutamate P-Cell
Retina Ganglion Cell On-Midget
Physiologically classified as the main ganglion cells with small receptive fields driven by center-On input. Matched with morphologically defined cell of extremely small dendritic arborization. As a population forms both a physical mosaic within retina as well as a receptive field mosaic of stimulus space. Both receptive field size and dendritic arborization are distinct from the corresponding Off-Midget Retina ganglion cell layer
Solitary tract nucleus HSD2 neuron BAMSC1112 HSD2 neuron
HSD2 cell
A subgroup of neurons in NTS that express glucocorticoid to inactivating enzyme 11 to beta to hydroxysteroid dehydrogenase type 2 (HSD2), a signature of aldosterone to sensitive tissues. Similar neurons are found in other brain regions. The NTS population may represent a unique phenotype. Solitary nucleus
Spinal cord border cell nlx_143585 Spinal border cell
spinal border neuron
Neuron in the ventral horn of lower thoracic/upper lumbar levels in rat, cat and monkey, regarded as the origin of the ventral spinocerebellar tract Thoracic spinal cord ventral horn
Lumbar spinal cord ventral horn
Spinal cord ventral horn motor neuron alpha sao1154704263 Acetylcholine
Glutamate
alpha motoneuron
lower motor neuron
alpha motor neuron
Large lower motor neuron of the brainstem and spinal cord. They innervate extrafusal muscle fibers of skeletal muscle and are directly responsible for initiating their contraction. Alpha motor neurons are distinct from gamma motor neurons, which innervate intrafusal muscle fibers of muscle spindles. Spinal cord ventral horn
Spinal cord ventral horn motor neuron gamma sao1438006234 Acetylcholine fusimotor neuron
Gamma motor neuron
Motor neurons which activate the contractile regions of intrafusal muscle fibers, thus adjusting the sensitivity of the muscle spindles to stretch. Gamma motor neurons may be "static" or "dynamic" according to which aspect of responsiveness (or which fiber types) they regulate. The alpha and gamma motor neurons are often activated together (alpha gamma coactivation) which allows the spindles to contribute to the control of movement trajectories despite changes in muscle length (MSH). Spinal cord ventral horn
Stomatogastric ganglion anterior burster neuron nlx_152047 Glutamate Identified individual neuron. Only non-efferent neuron of the pyloric central pattern generator circuit. Has endogenous bursting properties and is part of the pyloric pacemaker kernel. Graded inhibitory synapses onto pyloric and gastric mill circuit neurons within the stomatogastric ganglion, ascending axons to anterior ganglia. Stomatogastric ganglion
Substantia nigra pars compacta dopaminergic cell nifext_145 Dopamine substantia nigra dopaminergic cell
Nigral dopaminergic cell
Principal neuron of the substantia nigra pars compacta Substantia nigra pars compacta
Suprachiasmatic nucleus principal neuron nlx_151894 Vasopressin
Vasoactive intestinal peptide
Gastrin-releasing peptide
GABA
Somatostatin
Enkephalin
SCN neuron Neuron located in the mammalian suprachiasmatic nucleus. Has a role in the generation and/or propagation of circadian rhythms. Suprachiasmatic nucleus
Thalamus geniculate nucleus (medial) principal neuron nlx_cell_1005001 Principle neuron in ventral division of medial geniculate nucleu characterized by strongly tufted dendrites, with overall discoid dendritic fields extending dors-ventrally and antero-posteriorly on average of 200 um. Neurons are arranged in parallel laminae, seen in transverse or horizontal sections of the pars lateralis. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1261345/?page=8 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1261345/?page=8 Ventral nucleus of medial geniculate body
Thalamus ventroposterior nucleus principal neuron nlx_151691 Glutamate Ventral posterior nucleus
Trapezoid body medial nucleus principal cell nifext_79 Glycine Principal Cells Medial Nucleus Trapezoid Body
Trapezoid body medial nucleus principal neuron
Principal cell of the medial nucleus of the trapezoid body that receives input from the ventral cochlear nucleus at a specialized synaptic ending termed the Calyx of held. Medial nucleus of trapezoid body
Trigeminal nucleus motor neuron nlx_44081 Acetylcholine trigeminal nucleus motor cell
5th nerve motor neuron
Vth nerve motor neuron
Motor neuron whose cell soma lies within the Motor nucleus of trigeminal nerve Motor nucleus of trigeminal nerve
Tritonia dorsal swim interneuron Tri0001043 Serotonin Cerebral Serotonergic Posterior Neuron
Dorsal swim interneuron
DSI
One of three serotonergic neurons on the dorsal surface of the Tritonia cerebral ganglion. Projects an axon contralaterally to the pedal ganglion. Fires stereotypical bursts of action potentials during a swim motor pattern. Cerebral ganglion
Trochlear nucleus motor neuron nlx_70345 trochlear nucleus motor cell
4th nerve motor neuron
IVth nerve motor neuron
Motor neuron whose cell soma lies within the trochlear nucleus. Trochlear nucleus
Tuberomammillary nucleus large histamine neuron nlx_78845 Histamine
GABA
Tubermammillary histaminergic neuron Large neuron in the tubermammillary nucleus that contains histamine and projects widely to the cerebral cortex Tuberomammillary nucleus
Ventral dopaminergic cell nlx_144018 Principal neuron of the ventral tegmental area
Vestibular type 1 hair cell sao709770772 Glutamate Vestibular hair cell A mechanoreceptor hair cell located in the acoustic maculae and the semicircular canals that mediates the sense of balance, movement, and head position. The vestibular hair cells are connected to accessory structures in such a way that movements of the head displace their stereocilia. This influences the membrane potential of the cells which relay information about movements via the vestibular part of the vestibulocochlear nerve to the brain stem. Otolith organs
Semicircular canal
Vestibular type 2 hair cell nlx_151801 Glutamate A mechanoreceptor hair cell located in the acoustic maculae and the semicircular canals that mediates the sense of balance, movement, and head position. The vestibular hair cells are connected to accessory structures in such a way that movements of the head displace their stereocilia. This influences the membrane potential of the cells which relay information about movements via the vestibular part of the vestibulocochlear nerve to the brain stem. Otolith organs
Semicircular canals

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Facts about Principal neuronRDF feed
CurationStatuspending final vetting  +
DefinitionA neuron with role projection neuron role, i.e., a neuron whose axon projects out of the brain region in which its soma lies
Idnlx_cell_1003112  +
LabelPrincipal neuron  +
ModifiedDate31 March 2010  +
SuperCategoryDefined neuron class  +
SynonymProjection neuron  +, and principal cell  +