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Amphibian Reproduction - Anatomy & Physiology (view source)
Revision as of 13:33, 23 July 2008
, 13:33, 23 July 2008→Bidder's Organ
* Normally it is inactive and contains miniature follicles which have the capability to mature (becoming active).
* Normally it is inactive and contains miniature follicles which have the capability to mature (becoming active).
* When the female population is scarce, the Bidder's organ enlarges and produces viable oocytes and then gonadotropins, which stimulate the growth of the Müllerian ducts to form uterus and oviducts.
* When the female population is scarce, the Bidder's organ enlarges and produces viable oocytes and then gonadotropins, which stimulate the growth of the Müllerian ducts to form uterus and oviducts.
* Its internal anatomy consists of two parts:
** Central portion: consists of connective tissue and rich in blood vessels.
** Periphery: consists of the cortex, which contains follicles in various stages of development.
** Molecules of various proteins are present in the outer layer of the follicles, homologous to the zona pellucida of the ovum.
== Male Ducts ==
== Male Ducts ==