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False-colour SEM of sperm over uterine epithelium

False-colour SEM of sperm over uterine epithelium

P624/0062

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Credit

PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY

Restrictions:

Not for postcard use.

Caption

Spermatozoa in the uterus. False-colour scanning electron micrograph of a group of spermatozoa (yellow) floating over the internal wall of the uterus. Movements of sperm through the ciliated epithelium (green) cause capacitation. During this phase, which lasts about seven hours, a glycoprotein coat and seminal plasma proteins are removed from the heads of spermatozoa. This enables a spermatozoon, when close to the egg, to release special enzymes which allows it to penetrate the surrounding membranes of the egg. Magnification: x2595 at 6x7cm size. Magnification: x4080 at 4x5 inch size.

Release details

Model release not required. Property release not required.

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