This image is not available for purchase in your country.

Polarised LM of crystals of progesterone

Polarised LM of crystals of progesterone

A618/0353

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY

Caption

Female sex hormone. Polarised light micrograph of crystals of progesterone. Progesterone is the most potent of the naturally-occurring progestogens, a class of steroid hormones. It is derived from pregnenolone, which is itself made by the action of an enzyme on cholesterol. The primary function of progesterone is to prepare the inner lining of the womb for pregnancy. It is secreted by the ovaries following the release of an egg. If this egg is fertilised, the ovaries continue to produce progesterone for four months, after which it is secreted by the placenta. Magnification: x20 at 35mm size.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}