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CIL:25357*  Cite 

Scanning electron micrograph showing tentacles on the head of a Hydra viridis. Epithelial cells located at the base of the tentacle are in a flat, contracted state. Cell distal to the head of the H. viridis are rounded in their relaxed state. Specimens were fixed in Aldehyde-osmium fixative 0.75% glutaraldehyde, 0.75% formaldehyde and 1.0% OsO4 prepared in 0.05M sodium cacodylate buffer. Fixative was buffered to pH 7.4-7.5. H. viridis were critical point dried and sputter coated with gold. Images were taken on a FEI Quanta 200 ESEM scanning electron micrograph. This sample was photographed as a montage at a magnification of 529x and an accelerating voltage of 15kV with a 11.1 mm working distance.

Biological Sources
NCBI Organism Classification
Hydra viridis
Cell Type
epithelial cell
Marian Rice
Allison Miller
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Grouping This image is part of a group.
Image Type
scanning electron microscopy (SEM)
Image Mode
scanning electron microscopy (SEM)
Parameters Imaged
secondary electron generation
Data Qualifiers
raw, unprocessed data
Spatial Axis Image Size Pixel Size
X 1748px ——
Y 4565px ——