Reproductive Cycles: Difference between revisions

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Sexual reproduction in most species is regulated by regular endocrine changes, cycles, in the female.  
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There are a number of different species-specific female hormonal cycles which can regulate reproduction.
==Introduction==
[[File:Menstrual cycle.png|thumb|300px|A simplified cartoon of the menstrual cycle]]
Sexual reproduction in most species is regulated by regular endocrine changes, or cycles, in the female. These cycles begin postnatally, function for variable times and can then decrease or cease entirely. There are a number of different species-specific female hormonal cycles which can regulate reproduction.
 
== Menstrual Cycle ==
[[File:Menstrual cycle.png|120px|left|link=Menstrual Cycle]]
 
Human reproduction is regulated in females the menstrual cycle, a regular cyclic hormonal change which coordinate changes in the ovary and internal reproductive tract.
 
This cycle commences at puberty and ends at menopause.




== Menstrual Cycle ==
[http://embryology.med.unsw.edu.au/wwwhuman/MCycle/Mcycle.htm Human Menstrual Cycle]


Human reproduction is regulated in females the menstrual cycle, a regular cyclic hormonal change which coordinate changes in the ovary and internal reproductive tract. This cycle commences at puberty and ends at menopause.
:'''Links:''' {{menstrual cycle}} | {{ovary}} | {{uterus}} | {{puberty}}


== Estrous Cycle ==
== Estrous Cycle ==


(British spelling, oestrous) [http://embryology.med.unsw.edu.au/wwwhuman/MCycle/Ocycle.htm Estrous Cycle]
[[File:Mouse ovarian follicle size.jpg|120px|left|link=Estrous Cycle]]
The estrous cycle (British spelling, oestrous) is the main reproductive cycle of  females of other non-primate species vertebrates.


Other species females of non-primate vertebrates, for example rats, mice, horses, pig have this form of reproductive cycle.


'''Polyestrous Animals''' - Estrous cycles throughout the year (cattle, pigs, mouse, rat).
For example: rats, mice, horses, pigs all have this form of reproductive cycle.  


'''Seasonally Polyestrous Animal'''s - Animals that have multiple estrous cycles only during certain periods of the year (horses, sheep, goats, deer, cats).
<br>
:'''Links:''' {{estrous cycle}} | {{mouse estrous cycle}}
<br>
There are also a variety of different estrous forms:


'''Monestrous Animals''' - Animals that have one estrous cycle per year (dogs, wolves, foxes, and bear)
* '''Polyestrous Animals''' - Estrous cycles throughout the year (cattle, pigs, mouse, rat).
* '''Seasonally Polyestrous Animal'''s - Animals that have multiple estrous cycles only during certain periods of the year (horses, sheep, goats, deer, cats).
* '''Monestrous Animals''' - Animals that have one estrous cycle per year (dogs, wolves, foxes, and bear)
<br>


==External Links==
{{External Links}}


== External Links ==
* Rob Gilchrist Lecture - [http://fertility-resource.com/resources/lectures/keynote-lecture-iii-mono-ovulation-poly-ovulation-oocyte-regulation From mono-ovulation to poly-ovulation – oocyte regulation of folliculogenesis] (Advances in reproductive biology) January 2016 Lisbon, Portugal.
* [http://embryology.med.unsw.edu.au/wwwhuman/MCycle/Mcycle.htm Human Menstrual Cycle]
* [http://embryology.med.unsw.edu.au/wwwhuman/MCycle/Ocycle.htm Estrous Cycle]


{{Glossary}}
{{Glossary}}


{{Footer}}
{{Footer}}

Latest revision as of 13:16, 4 May 2018

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Introduction

A simplified cartoon of the menstrual cycle

Sexual reproduction in most species is regulated by regular endocrine changes, or cycles, in the female. These cycles begin postnatally, function for variable times and can then decrease or cease entirely. There are a number of different species-specific female hormonal cycles which can regulate reproduction.

Menstrual Cycle

Menstrual cycle.png

Human reproduction is regulated in females the menstrual cycle, a regular cyclic hormonal change which coordinate changes in the ovary and internal reproductive tract.

This cycle commences at puberty and ends at menopause.


Links: menstrual cycle | ovary | uterus | puberty

Estrous Cycle

Mouse ovarian follicle size.jpg

The estrous cycle (British spelling, oestrous) is the main reproductive cycle of females of other non-primate species vertebrates.


For example: rats, mice, horses, pigs all have this form of reproductive cycle.


Links: estrous cycle | mouse estrous cycle


There are also a variety of different estrous forms:

  • Polyestrous Animals - Estrous cycles throughout the year (cattle, pigs, mouse, rat).
  • Seasonally Polyestrous Animals - Animals that have multiple estrous cycles only during certain periods of the year (horses, sheep, goats, deer, cats).
  • Monestrous Animals - Animals that have one estrous cycle per year (dogs, wolves, foxes, and bear)


External Links

External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.

Glossary Links

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Cite this page: Hill, M.A. (2024, March 28) Embryology Reproductive Cycles. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Reproductive_Cycles

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G