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rhabdom
rhabdom Ent. (ˈræbdəm) Also -ome. [ad. late Gr. ῥάβδωµα, f. ῥάβδος rod.] One of the rods supporting the crystalline lenses in a faceted eye.1878 Bell tr. Gegenbaur's Comp. Anat. 264 The rods..become united, and form a special structure, the ‘rhabdom’, in the long axis of a group of combined retinal ...
Oxford English Dictionary
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Ommatidium
The portion of the R cells at the central axis of the ommatidium collectively form a light guide, a transparent tube, called the rhabdom. Rhabdomeres
In true flies, the rhabdom has separated into seven independent rhabdomeres (there are actually eight, but the two central rhabdomeres responsible
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rhabdome
rhabdome Zool. (ˈræbdəʊm) [ad. late Gr. ῥάβδωµα (see rhabdom).] The shaft of a rhabdus of which one ray is branched.1887 Sollas in Encycl. Brit. XXII. 417/1 A particular case of the cladose rhabdus, but one of the most frequent occurrence, is the triæne; in this form one ray of a rhabdus ends in thr...
Oxford English Dictionary
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rhabdo-
rhabdo- (ˈræbdəʊ, ræbˈdɒ) combining form of Gr. ῥάβδος rod, occurring in a few technical terms (chiefly zoological): ˈrhabdocœl(e [Gr. κοῖλος hollow] a., having a straight digestive cavity, as turbellarian worms; n., a worm of this kind; one of the Rhabdocœla. rhabdoˈcœlian, -ˈcœlous adjs., = prec. ...
Oxford English Dictionary
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Megalopta
They have large ocellar lenses and the percent area of the retina covered by the rhabdom is five times higher than diurnal bees. Their rhabdom are elongated, with microvilli aligned in the same direction which potentially allows them to see the direction of polarized light.
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Apoica pallens
These wasps have larger visual fields compared to those of relatives due to a greater diameter of the rhabdom, a rodlike structure in the eye that is sensitive
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retinula
retinula Biol. (rɛˈtɪnjʊlə) Pl. -ulæ. Also anglicized as retinule (ˈrɛtɪnjuːl). [Diminutive, on L. types, of retina; coined in Ger. by H. Grenacher in Untersuchungen über das Arthropoden-Auge (1877) ii. 17.] One of the pigmented cells from which, in certain compound eyes of Arthropods, the rhabdom a...
Oxford English Dictionary
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Vanessa atalanta
They have compound eyes with a transparent, crystalline structure called a rhabdom which is similar in function to a human retina. These butterflies do not have the specific lateral filtering pigments coating their rhabdom found in some other nymphalid butterflies that likely evolved
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Compound eye
The typical apposition eye has a lens focusing light from one direction on the rhabdom, while light from other directions is absorbed by the dark wall The refracting superposition eye has a gap between the lens and the rhabdom, and no side wall.
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عيينة (عضو)
تتكون العيينة من 5 إلى 9 خلايا مستقبلات الضوء (F في الشكل ) تتجه زغيباتها إلى الداخل وتكوّن شعيرة حسية (رابدوم Rhabdom) E .
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Misumena vatia
These spiders also have a "giant rhabdom" in the lowest layer of the center of the retina. Only the light entering along its optic axis stimulates this giant rhabdom, so the visual information comes in the shape of a dot.
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rod
▪ I. rod, n.1 (rɒd) Also 1–6 rodd-, 4–5 rodd, 5–7 rodde. [OE. rodd, corresponding in sense to the continental forms cited under rood n., but in form quite distinct. Prob. related to ON. rudda ‘club’, Norw. dial. rudda, rydda ‘a large pliant twig or stick used as a whip’, rodda ‘a stake set upright t...
Oxford English Dictionary
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灰尖角灰蝶 - 生命大百科 - Encyclopedia of Life
定義: The sensory system subserving the sense of vision. 定義: A compound eye with no separation between the crystalline-cone layer and the retinula, each rhabdom receiving light only from its own corneal lens. 定義: Qualities pertaining to the size, shape or structure of the wing. 定義: Wings are present. 灰尖角灰蝶的已 ...
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شعيرة حسية
شعيرة حسية أو عمود حسي (بالإنجليزية: Rhabdom ) هو محور ناقل للضوء في عيينات الحشرات .
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Atlantic horseshoe crab
This forms the rhabdom, which contains the dendrite of the eccentric cell, and may also contribute some microvilli. In all arthropods, there is always a rhabdom below a crystalline cone, on or near the center of the ommatidium, and always aligned with the path of light
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