from Section 1 - Physiology of Reproduction
Published online by Cambridge University Press: 05 March 2021
The physiological importance of the female reproductive system is the production of offspring. The female produces gametes that can be fertilized by the male gamete to form the first cell of the offspring. The sequence of events is tightly dependent on the proper functionality of the endocrine system.
Much of the endocrine system is governed by rhythms, some of which are intrinsic, while others are influenced by the environment. Rhythms that are longer than 24 hours, the infradian rhythms, include the seasonal breeding patterns in some animals and the female menstrual cycle. Circadian or 24-hour rhythms include the sleep–wake cycle and the increase in gonadotropin secretion seen at night in adolescents. Finally, cycles of less than 24 hour, the ultradian cycles, include the pulsatile release of luteinizing hormone (LH), follicle-stimulating hormone (FSH), growth hormone, and prolactin.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.