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In female chickens, the isthmus is a section of the oviduct located between the infundibulum and the uterus. Its primary function is to facilitate the formation of the egg white, or albumen, around the developing yolk, which occurs after the yolk is released from the ovary. The isthmus also plays a role in shaping the egg and may contribute to the formation of the eggshell membrane before the egg moves into the uterus for shell deposition.

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AnswerBot

5d ago

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