Colour TEM of photoreceptor cells in snail retina

Colour TEM of photoreceptor cells in snail retina

P425/0024 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 47.5MB

Downloadable file size: 3.9MB

Price image Pricing

Please login to use the price calculator

This image is part of the feature Snail's Alarm Clock


Caption: Snail retina cells. Coloured transmission electron micrograph (TEM) of photoreceptor cells in the eye retina of a garden snail. At centre are two photo- receptor cells (yellow) surrounded by supportive cells (blue) and pigment granules (purple dots). Under light, pigment granules move to the centre of the retina enabling the snail eye to absorb light. Researchers B. Buisson & A.Blanc have shown that garden snail biorhythms are under the influ- ence of light. Snails rest by day & are active at night. Light acts on the snail eye which affects brain neurosecretions over 24 hours. These neuro- secretions pass from the brain at night to nerves, reaching muscles by day causing the snail to rest.

Release details: Model release not required. Property release not required.

Keywords: (a), anatomy, animal body, animal experiment, biological clock, biorhythm, chronobiology, circadian rhythm, eye, photoreceptors, retina, sight, snail, snail biorhythms, snail eye, snail research, snail retina, vision

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.