About: Midget cell

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A midget cell is one type of retinal ganglion cell (RGC). Midget cells originate in the ganglion cell layer of the retina, and project to the parvocellular layers of the lateral geniculate nucleus (LGN). The axons of midget cells travel through the optic nerve and optic tract, ultimately synapsing with parvocellular cells in the LGN. These cells are known as midget retinal ganglion cells due to the small sizes of their dendritic trees and cell bodies. About 80% of RGCs are midget cells. They receive inputs from relatively few rods and cones. In many cases, they are connected to midget bipolar cells, which are linked to one cone each.

Attributes	Values
rdf:type	Thing wikidata:Q4936952 anatomical structure yago:Abstraction100002137 yago:AmorphousShape113867492 yago:Attribute100024264 yago:Cell102991711 yago:Compartment103080309 yago:Location100027167 yago:Object100002684 yago:PhysicalEntity100001930 yago:WikicatHumanCells yago:YagoGeoEntity yago:YagoLegalActorGeo yago:YagoPermanentlyLocatedEntity yago:Shape100027807 yago:Space113910384
rdfs:label	Midget cell (en)
rdfs:comment	A midget cell is one type of retinal ganglion cell (RGC). Midget cells originate in the ganglion cell layer of the retina, and project to the parvocellular layers of the lateral geniculate nucleus (LGN). The axons of midget cells travel through the optic nerve and optic tract, ultimately synapsing with parvocellular cells in the LGN. These cells are known as midget retinal ganglion cells due to the small sizes of their dendritic trees and cell bodies. About 80% of RGCs are midget cells. They receive inputs from relatively few rods and cones. In many cases, they are connected to midget bipolar cells, which are linked to one cone each. (en)
foaf:name	Midget cell (en)
name	Midget cell (en)
foaf:depiction
dcterms:subject	Nervous tissue cells Visual system
Wikipage page ID	26846982 (xsd:integer)
Wikipage revision ID	982299713 (xsd:integer)
Link from a Wikipage to another Wikipage	Nervous tissue cells Retina Visual system Optic tract Photosensitive ganglion cell Dendrite Parvocellular cell Ganglion cell layer Lateral geniculate nucleus Receptive field Retinal ganglion cell Visual system Bistratified cell Optic nerve Conduction velocity Eye Parasol cell Bipolar cell of the retina Parvocellular layer
sameAs	Midget cell Midget cell Midget cell Midget cell Midget cell Midget cell
dbp:wikiPageUsesTemplate	dbt:Infobox_anatomy dbt:Commonscatinline dbt:Reflist dbt:Eye_anatomy
thumbnail	wiki-commons:Special:FilePath/Midget_vs_Parasol_cell.png?width=300
caption	A sketch of a parasol cell alongside a midget cell for size comparison (en)
system	Visual system
has abstract	A midget cell is one type of retinal ganglion cell (RGC). Midget cells originate in the ganglion cell layer of the retina, and project to the parvocellular layers of the lateral geniculate nucleus (LGN). The axons of midget cells travel through the optic nerve and optic tract, ultimately synapsing with parvocellular cells in the LGN. These cells are known as midget retinal ganglion cells due to the small sizes of their dendritic trees and cell bodies. About 80% of RGCs are midget cells. They receive inputs from relatively few rods and cones. In many cases, they are connected to midget bipolar cells, which are linked to one cone each. These neurons show roughly circular receptive fields with antagonistic center and surround; this property is known as spatial opponency and these neurons are typically divided into ON- or OFF-center, depending on whether they are excited or inhibited by photons falling on the center of their receptive fields. Most of these cells are chromatically opponent, meaning that long- and medium-wavelength visible light (commonly approximated to red and green, respectively) exert opposing effects on the center and the surround. For instance, a chromatically opponent L-ON midget cell would be excited (and more likely to spike action potentials) if light of long wavelength falls on the cone or cones in the center of its receptive field but would be inhibited by medium-wavelength light falling on the surround of its receptive field. However, not all midget cells are chromatically opponent. They have slow conduction velocity and are very responsive to high temporal frequencies (i.e. rapidly and low spatial frequencies). (en)
part of	Retina of eye (en)
gold:hypernym	Type
prov:wasDerivedFrom	wikipedia-en:Midget_cell?oldid=982299713&ns=0
page length (characters) of wiki page	3278 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Midget_cell
is Link from a Wikipage to another Wikipage of	Midget Intrinsically photosensitive retinal ganglion cell Magnocellular cell Stephen Polyak Parvocellular cell Retinal ganglion cell Bistratified cell Parasol cell
is foaf:primaryTopic of	wikipedia-en:Midget_cell

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