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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In a young female of reproductive age with regular menstrual cycles of 28 days, if ovulation occurs around 14th day of periods. When is the first polar body extruded?
assistant
The correct answer is  Primary oocyte completes its first meiotic division at the time of ovulation giving rise to secondary oocyte and first polar body. Reference: Langman'"s Textbook of embryology 13th edition, page 28