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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: x10 at 35mm size, x20 at 6x7mm size.
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Details
Creative#:
TOP07420166
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
Model Release:
NO
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NO
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No
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