Difference between revisions of "Reproductive Cycles"

From Embryology
Line 1: Line 1:
 
==Introduction==
 
==Introduction==
[[File:Menstrual cycle.png|thumb|simplified cartoon of the menstrual cycle]]  
+
[[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.
 
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.
  

Revision as of 13:07, 20 May 2011

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 | original page

Estrous Cycle

Mouse ovarian follicle size.jpg

The estrous cycle (British spelling, oestrous) is the main reproductive cycle of other species females of non-primate vertebrates, for example rats, mice, horses, pig have this form of reproductive cycle.

Links: Estrous Cycle | Mouse Estrous Cycle | original page

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)


Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link

Cite this page: Hill, M.A. (2021, July 24) Embryology Reproductive Cycles. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Reproductive_Cycles

What Links Here?
© Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G