Changes

* Most birds have only left ovary but 2 ovaries are typical of many raptors.

* Most birds have only left ovary but 2 ovaries are typical of many raptors.

* '''Left Ovary''' lies caudal to the [[Adrenal_Glands_- Anatomy & Physiology|Adrenal Gland]], close to the cranial tip of the [[Macroscopic Renal Anatomy - Anatomy & Physiology#Common Anatomy|Kidney]].

* '''Left Ovary''' lies caudal to the [[Adrenal_Glands_- Anatomy & Physiology|Adrenal Gland]], close to the cranial tip of the [[Renal Anatomy - Anatomy & Physiology#Common Anatomy|Kidney]].

* Consists of:

* Consists of:

** '''Medulla''': vascular with nerve fibres and smooth muscle

** '''Medulla''': vascular with nerve fibres and smooth muscle

* Suspended by the '''mesovarium'''.

* Suspended by the '''mesovarium'''.

* Blood supply from the '''cranial renal artery'''

* Blood supply from the '''cranial renal artery'''

** Artery is very short, making ovariectomy very difficult with risk of [[Haemorrhage - Pathology|haemorrhage]].

** Artery is very short, making ovariectomy very difficult with risk of [[Haemorrhage|haemorrhage]].

* Contains from 500 to several thousand primary [[Oogenesis - Anatomy & Physiology|oocytes]].

* Contains from 500 to several thousand primary [[Oogenesis - Anatomy & Physiology|oocytes]].

* [[Follicles - Anatomy & Physiology|Follicles]] are '''pedunculated''', suspended by a stalk containing smooth muscle that has a rich vascular and nerve supply.

* [[Follicles - Anatomy & Physiology|Follicles]] are '''pedunculated''', suspended by a stalk containing smooth muscle that has a rich vascular and nerve supply.

* Occupies the left,dorsal part of the body cavity.

* Occupies the left,dorsal part of the body cavity.

* Related to the [[Macroscopic Renal Anatomy - Anatomy & Physiology#Common Anatomy|Kidney]], [[Avian_Intestines_- Anatomy & Physiology|intestines]] and [[Gizzard_- Anatomy & Physiology|gizzard]].

* Related to the [[Renal Anatomy - Anatomy & Physiology#Common Anatomy|Kidney]], [[Avian_Intestines_- Anatomy & Physiology|intestines]] and [[Gizzard_- Anatomy & Physiology|gizzard]].

* Massive coiled structure approximately twice body length when fully functional..

* Massive coiled structure approximately twice body length when fully functional..

** Much reduced in juveniles and during the non-laying period.

** Much reduced in juveniles and during the non-laying period.

[[Category:Avian Reproduction]]

[[Category:Avian Reproduction]]