CBSE - X - Biology - How Do Organisms Reproduce?
how eggs get fertilised in the fallopian tube as it is a thin tube?
A muscular ligament called the fimbria ovarica joins the fimbrial end of the fallopian tube and the ovary. At the time of ovulation, the fimbria ovarica contracts to pull the fimbrial end of the tube even closer to the ovary. The beating ciliary cells of the fimbria capture the egg and draw it into the fallopian tube. Muscular contractions of the tube and the cilia of its inner lining move the egg and sperm toward the uterus. The interstitial segment of the tube acts like a muscular sphincter and prevents the egg from being released into the uterus, until it is ready for implantation. In this way, although the fallopian tube is thin, it enables the egg to get fertilized inside it.
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