ommatidium). An ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells. The outer part of the ommatidium is...
10 KB (1,224 words) - 14:04, 2 November 2023
collection of ommatidia, each with its own lens, light will enter each ommatidium instead of using a single entrance point. The individual light receptors...
10 KB (1,217 words) - 08:24, 26 July 2024
800 unit ommatidia which are repeated in a symmetrical pattern. Each ommatidium contains 8 photoreceptor cells, each of which forms a rhabdomere (rhabdomeres...
3 KB (310 words) - 00:09, 30 March 2023
ommatidia, columns that are usually hexagonal in cross section. Each ommatidium is an independent sensor, with its own light-sensitive cells and often...
130 KB (12,444 words) - 02:54, 29 August 2024
make up compound eyes. Additionally, not all invertebrate ocelli and ommatidium have simple photoreceptors. Many have various forms of retinula (a retina-like...
23 KB (2,655 words) - 07:53, 23 June 2024
united by cryptonephric Malpighian tubules of the normal type, a cone ommatidium with open rhabdom, and lack of functional spiracles on the eighth abdominal...
6 KB (481 words) - 14:52, 15 August 2024
apparatus Feature detection Infrared sensing in snakes Monocular deprivation Ommatidium Palpebral (bone) Pseudopupil Rhopalium Underwater vision Visual perception...
20 KB (2,385 words) - 18:31, 5 June 2024
into the ordered hexagonal pattern seen in more derived arthropods. Each ommatidium feeds into a single nerve fiber. Furthermore, the nerves are large and...
50 KB (5,484 words) - 07:17, 13 July 2024
consist of thousands of individual photoreceptor units or ommatidia (ommatidium, singular). The image perceived is a combination of inputs from the numerous...
59 KB (7,514 words) - 23:40, 26 August 2024
eyes or ommatidia, and are one of the most advanced among insects. Each ommatidium contains eight photoreceptor cells (R1-8), support cells, pigment cells...
145 KB (16,685 words) - 04:50, 26 August 2024