Por favor, use este identificador para citar o enlazar este ítem:
https://www.arca.fiocruz.br/handle/icict/39148
Tipo
ArtículoDerechos de autor
Acceso abierto
Colecciones
- IOC - Artigos de Periódicos [12791]
Metadatos
Mostrar el registro completo del ítem
STRUCTURAL AND FUNCTIONAL ANALYSIS OF THE EYE OF BIOMPHALARIA GLABRATA (MOLLUSCA, GASTROPODA, BASOMMATOPHORA)
Retina
Biomphalaria glabrata
Photoreceptor cells
physiological optics
Behavior
Afiliación
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil.
Resumen en ingles
1- The eye of the snail Biomphalaria glabrata was studied at the light microscope level. The eye is a spherical lens bathed in humor (vitreous body) and surrounded by the corneal and retinal cell layers. 2- The retina is composed of four layers: the inner photoreceptor layer close to the ocellar cavity, a pigmented layer, a nuclear layer, and the fibrous layer. The nuclear layer contains the nuclei of the supporting cells and of two types of sensory cells that are similar to those described for other gastropod molluscs. 3- Calculations of optical properties showed that the eye of B. glabrata is slightly hypermetropic and has limited resolving power. 4- The results are discussed in terms of the importance of visual information for the behavior of this animal.
Palabras clave en ingles
EyeRetina
Biomphalaria glabrata
Photoreceptor cells
physiological optics
Behavior
Compartir