Definition of nest for English Language Learners. : the place where a bird lays its eggs and takes care of its young. : a place where an animal or insect lives and usually lays eggs or takes care of its young.
Hormones for Fertility. Gonadotropins are hormones which stimulate the gonads, which are the ovaries or testes. Yes, gonadotropins work on men, as well! Gonadotropins are injectable fertility drugs which contain follicle stimulating hormone, or FSH, luteinizing hormone, or LH, or both.They are given to women to help your body make the hormones needed for egg production.They may also be used for men with low testosterone and FSH to promote sperm formation.onadotropins are injectable fertility drugs which contain follicle stimulating hormone, or FSH, luteinizing hormone, or LH, or both. They are given to women to help your body make the hormones needed for egg production. They may also be used for men with low testosterone and FSH to promote sperm formation.
In molecular biology, human chorionic gonadotropin (hCG) is a hormone produced by the syncytiotrophoblast, a portion of the placenta following implantation.The presence of hCG is detected in pregnancy tests.aturally, it is produced in the human placenta by the syncytiotrophoblast. Like other gonadotropins, it can be extracted from the urine of pregnant women or produced from cultures of genetically modified cells using recombinant DNA technology.