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What is the significance of ampullary-is...

What is the significance of ampullary-isthmic junction in the female reproductive tract?

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The act of fertilisation takes place in the female genital track that is at the junction of the isthmus and ampulla (ampullary-isthmic junction) of the Fallopian tube.
Not Fertilisation can only occure if the ovum and sperms are tarnsported simultaneously to the ampullay-isthmic junction. All copulations do not lead to fertilisation and pregnancy.
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