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Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 09:56, 10 September 2008
, 09:56, 10 September 2008→Pro-Oestrus
=== Pro-Oestrus ===
=== Pro-Oestrus ===
* The phase immediately preceding oestrus.
* Marked increase in reproductive activity.
* Follicular growth and regression of the corpus luteum of the previous cycle (in polyoestrous species).
* Uterus enlarges slightly
* Endometrium becomes congested and oedematous, glands show secretory activity.
* Vaginal mucous becomes hyperaemic.
** Increase in cell numbers in the vaginal epithelium.
** Superficial layers become cornified.
* The bitch shows external evidence:
** Vulval oedema
** Hyperaemia
** Sanguinous vulval discharge
=== Oestrus ===
=== Oestrus ===