Changes

== The Corpus Luteum ==

== The Corpus Luteum ==

* When the dominant antral [[The Ovary_-_Follicles_- Anatomy & Physiology|follicle]] ovulates, slight localised haemorrhage occurs at the site of ovulation and fills the former cavity.

* When the dominant antral [[Follicles_- Anatomy & Physiology|follicle]] ovulates, slight localised haemorrhage occurs at the site of ovulation and fills the former cavity.

* The small amount of bloody tissue can be observed by the naked eye.

* The small amount of bloody tissue can be observed by the naked eye.

* Loss of fluid from the antral cavity causes the follicle to collapse into many folds.

* Loss of fluid from the antral cavity causes the follicle to collapse into many folds.

* As a result, some granulosal and thecal layers are pushed into the apex of the ruptured [[The Ovary_-_Follicles_- Anatomy & Physiology|follicle]].

* As a result, some granulosal and thecal layers are pushed into the apex of the ruptured [[Follicles_- Anatomy & Physiology|follicle]].

* This protrusion of tissue and ruptured blood vessels forms a structure known as the '''[[Corpus Haemorrhagicum - Anatomy & Physiology|Corpus Haemorrhagicum]]'''.  

* This protrusion of tissue and ruptured blood vessels forms a structure known as the '''[[Corpus Haemorrhagicum - Anatomy & Physiology|Corpus Haemorrhagicum]]'''.  

* Following this, the theca interna and granulosa cells differentiate into large and small luteal cells.  

* Following this, the theca interna and granulosa cells differentiate into large and small luteal cells.