Changes

** In anoestrous females the [[Ovary - Anatomy & Physiology|ovaries]] are oval or circular, flattened laterally and have an irregular surface due to many small [[Follicles - Anatomy & Physiology|follicles]].

** In anoestrous females the [[Ovary - Anatomy & Physiology|ovaries]] are oval or circular, flattened laterally and have an irregular surface due to many small [[Follicles - Anatomy & Physiology|follicles]].

** During the breeding season, mature [[Follicles - Anatomy & Physiology|follicles]] and current [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpora lutea]] (CL) project from the main contour of the [[Ovary - Anatomy & Physiology|ovary]] and give it a more lobular form.

** During the breeding season, mature [[Follicles - Anatomy & Physiology|follicles]] and current [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpora lutea]] (CL) project from the main contour of the [[Ovary - Anatomy & Physiology|ovary]] and give it a more lobular form.

*** This lobulation increases with increased number of previous [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulations]] or pregnancies and is due mainly to the presence of old [[The_Ovary_-Corpus_Albicans_- Anatomy & Physiology|corpora albicantia]].

*** This lobulation increases with increased number of previous [[Ovulation - Anatomy & Physiology|ovulations]] or pregnancies and is due mainly to the presence of old [[The_Ovary_-Corpus_Albicans_- Anatomy & Physiology|corpora albicantia]].

=== Ovarian Structures ===

=== Ovarian Structures ===

** Medulla  

** Medulla  

* Whole organ is enclosed by a tunica albuginea except in the area of the hilus.

* Whole organ is enclosed by a tunica albuginea except in the area of the hilus.

* Follicular activity takes place in the cortex and [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulation]] can occur anywhere on this surface.  

* Follicular activity takes place in the cortex and [[Ovulation - Anatomy & Physiology|ovulation]] can occur anywhere on this surface.  

* However, as camelids are induced ovulators (only ovulate in response to mating) there is no cyclical appearance of a [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|CL]] in non-mated females.

* However, as camelids are induced ovulators (only ovulate in response to mating) there is no cyclical appearance of a [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|CL]] in non-mated females.

* [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|Corpora lutea]] are only present in the ovaries of recently bred or pregnant females.

* [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|Corpora lutea]] are only present in the ovaries of recently bred or pregnant females.

==== Corpus Luteum ====

==== Corpus Luteum ====

* Forms after [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulation]], which occurs 24 - 48 hours after mating.

* Forms after [[Ovulation - Anatomy & Physiology|ovulation]], which occurs 24 - 48 hours after mating.

* The ovulating [[Follicles - Anatomy & Physiology|follicle]] collapses at [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulation]] and then the follicular cavity fills with blood to form a [[Corpus Haemorrhagicum - Anatomy & Physiology|corpus haemorrhagicum]].  

* The ovulating [[Follicles - Anatomy & Physiology|follicle]] collapses at [[Ovulation - Anatomy & Physiology|ovulation]] and then the follicular cavity fills with blood to form a [[Corpus Haemorrhagicum - Anatomy & Physiology|corpus haemorrhagicum]].  

* [[Corpus_Luteum_Formation_-_Anatomy & Physiology|Luteinization]] of the [[Corpus Haemorrhagicum - Anatomy & Physiology|corpus haemorrhagicum]] occurs within 4 - 5 days and gives rise to a [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpus luteum]].  

* [[Corpus_Luteum_Formation_-_Anatomy & Physiology|Luteinization]] of the [[Corpus Haemorrhagicum - Anatomy & Physiology|corpus haemorrhagicum]] occurs within 4 - 5 days and gives rise to a [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpus luteum]].  

* [[Corpus_Luteum_Regression -_Anatomy_&_Physiology|Regression]] of the [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|CL]] occurs between 10 - 12 days after a sterile mating or just before parturition in the pregnant female.

* [[Corpus_Luteum_Regression -_Anatomy_&_Physiology|Regression]] of the [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|CL]] occurs between 10 - 12 days after a sterile mating or just before parturition in the pregnant female.