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perception

 

Cone of a rabbit

One may distinguish the typical elements of a cone cell.

A typical feature of rabbit cones is the relatively short outer segment. It's the small bent tip embedded between other ± transparent outer segments. It is arising from a long inner segment containing the machinery to generate the molecules and the energy for photoreception. From the cell body with the cell nucleus the axon is winding down between (invisible) cell bodies of rod photoreceptorsa to terminate in the knobby pedicle. There the synaptic contacts (20-35) to interneurons are established......
SmconePause
Retinal Morphology and Color Vision

Copyright © 1997 Bernd Hufnagel and Peter Ahnelt. All rights reserved.

Photopigment Transmittance Images

By taking the ratio of retinal images taken before and after bleaching away the photopigment, it is possible to measure the optical density of the photopigment, determine which type of pigment each cone contains, and construct a photopigment transmittance image that shows what the retina would look like if it could be viewed in white light without bleaching away the photopigment.....
Images of the Primate Photoreceptor Mosaic

Copyright © 1997 Orin Packer. All rights reserved.

 

re:ception



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Copyright © 1997 Orin Packer. All rights reserved.
Copyright © 1997 Bernd Hufnagel and Peter Ahnelt. All rights reserved.
Copyright © 1997 Re::poem. All rights reserved.