| 释义 |
rod cell
Thesaurus| Noun | 1. | rod cell - a visual receptor cell that is sensitive to dim lightretinal rod, rodretina - the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nervevisual cell - one of the cells of the retina that is sensitive to lightretinal purple, rhodopsin, visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light |
Translations
EncyclopediaSeerodrod cell
Neuroanatomy A retinal photoreceptor for colourless low-light vision
Neuropathology A modified microglial cell that increases in size and number in paretic dementia (3º syphilis) and subacute encephalitides (e.g., encephalitis lethargica and cerebral trypanosomiasis)rod (rod) 1. A straight, slender, cylindric structure or device. For surgical rods, see nail;pin2. The photosensitive, outward-directed process of a rhodopsin-containing rod cell in the external granular layer of the retina; many millions of such rods, together with the cones, form the photoreceptive layer of rods and cones.
Synonym(s): rod cell. [A.S. rōd]rod or rod cell a rod-shaped, light-sensitive cell lying in the more peripheral parts of the RETINA in the vertebrate eye. Rods are particularly associated with vision under conditions of low illumination and they occur in large numbers in nocturnal animals. They are not capable of colour discrimination and their visual acuity is poor (compare CONE CELL). RHODOPSIN (visual purple) is found in rods. There are some 240 million rods in the retinas of a primate.see RETINAL CONVERGENCE.rod (rod) 1. A straight, slender, cylindric structure or device. 2. The photosensitive, outward-directed process of a rhodopsin-containing rod cell in the external granular layer of the retina. [A.S. rōd]LegalSeeRodrod cell
Related to rod cell: cone cellSynonyms for rod cellnoun a visual receptor cell that is sensitive to dim lightSynonymsRelated Words- retina
- visual cell
- retinal purple
- rhodopsin
- visual purple
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