Retinula - definition of retinula by The Free Dictionary
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n. pl. re·tin·u·lae (-lē)
A cluster of pigment-containing photosensitive cells in each ommatidium of the compound eye of an arthropod.
[New Latin rētinula, diminutive of Medieval Latin rētina, retina; see retina.]
a cell cluster found in the compound eye (an eye made up of many elements) of certain insects or other invertebrates with segmented limbs and bodies
re•tin•u•la (rɪˈtɪn yə lə)
n., pl. -lae (-ˌli)
a group of elongate neural receptor cells forming part of an arthropod compound eye.
References in periodicals archive
Movement of retinula
cells in insect eyes on light adaptation.
cell ultrastructure, and receptor potentials in the developing pupal eye of the moth Manduca sexta.
Wolken (1958) first described the rhabdome of the eyes of Octopus and Sepia as being formed from the radial arrangement of 4 retinula
cells, which are separated from each other by pigment cells.
Spectral sensitivity of single retinula
cells of the locust.
The crystalline cone, which is the product of two cells, lies directly below the cornea and is attached to the tip of the rhabdom of the retinula
Diurnal changes in retinula
cell sensitivities and receptive fields (two-dimensional angular sensitivity functions) in the apposition eyes of Ligia exotica (Crustacea, Isopoda).