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Updated: Jun 13, 2026

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians
Published on: May 12, 2019
Abstract:
The family physician must assume the role of counsellor on birth control and should therefore be knowledgeable about modern techniques. He should also be aware of sterilization and abortion procedures and should be able to direct his patients to other agencies when necessary. This article covers details of the rhythm method, coitus interruptus, condoms, cervical occlusive devices, chemical contraceptives, intrauterine devices, contraceptive pills, and sterilization of both male and female.
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Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
Hormonal Regulation
Hormonal Regulation
