(Science: anatomy) Pertaining to, or discovered by, Regnier de Graaf, a dutch physician. Graafian follicles or vesicles, small cavities in which the ova are developed in the ovaries of mammals, and by the bursting of which they are discharged.
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... is secreted by the pituitary gland in the brain and its carried in the blood to the ovary, where it stimulates the development of one or more Graafian follicles I hope that I helped but I don’t know what is the answer for the other part of your question ;)
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