Contains [[Follicles_- Anatomy & Physiology|Follicles]] in various stages of development as well as the [[Corpus Luteum_- Anatomy & Physiology|Corpus Luteum]] (includes Corpus Haemorrhagicum and Corpus Albicans). The cortex reaches the surface of the ovary at the ovulation fossa, a deep indentation at the free margin. This is where mature follicles rupture in ovulation, as opposed to at various points on the surface in other domestic mammals. [[Follicles_- Anatomy & Physiology|Follicles]] can be identified by transrectal palpation, but [[Corpus Luteum_- Anatomy & Physiology|Corpora Lutea]] cannot. Identification of [[Corpus Luteum_- Anatomy & Physiology|Corpora Lutea]] requires ultrasonography. | Contains [[Follicles_- Anatomy & Physiology|Follicles]] in various stages of development as well as the [[Corpus Luteum_- Anatomy & Physiology|Corpus Luteum]] (includes Corpus Haemorrhagicum and Corpus Albicans). The cortex reaches the surface of the ovary at the ovulation fossa, a deep indentation at the free margin. This is where mature follicles rupture in ovulation, as opposed to at various points on the surface in other domestic mammals. [[Follicles_- Anatomy & Physiology|Follicles]] can be identified by transrectal palpation, but [[Corpus Luteum_- Anatomy & Physiology|Corpora Lutea]] cannot. Identification of [[Corpus Luteum_- Anatomy & Physiology|Corpora Lutea]] requires ultrasonography. |