The part of Fallopian tube closest to the ovary is?
Correct answer: B. Infundibulum
- A. Isthmus
- B. Infundibulum
- C. Cervix
- D. Ampulla
Explanation
Note: Each Fallopian tube is about 10-12 cm long and extends from the periphery of each ovary to the uterus, the part closer to the ovary is the funnel-shaped infundibulum. The edges of the infundibulum possess finger-like projections called fimbriae, which help in collection of the ovum after ovulation. The infundibulum leads to a wider part of the oviduct called ampulla. The last part of the oviduct, isthmus has a narrow lumen and it joins the uterus.The correct option is: b) InfundibulumExplanation of each option:a) Isthmus:The isthmus is a part of the Fallopian tube, but it is not the part closest to the ovary. It is the narrow, constricted region of the Fallopian tube located between the ampulla and the interstitial (cornual) part, which connects to the uterus.b) Infundibulum:This is the correct option. The infundibulum is the part of the Fallopian tube that is closest to the ovary. It is a funnel-shaped structure with finger-like projections called fimbriae. The fimbriae extend from the infundibulum and sweep over the surface of the ovary, helping to capture the released egg (ovum) during ovulation and directing it into the Fallopian tube.c) Cervix:The cervix is not part of the Fallopian tube. It is the lower, narrow part of the uterus that connects to the vagina. It serves as the opening to the uterus.d) Ampulla:The ampulla is another part of the Fallopian tube, but it is not the part closest to the ovary. It is the wider and longer mid-portion of the Fallopian tube, located between the infundibulum and the isthmus. It is the usual site of fertilization, where sperm and egg meet.In summary, the correct option is (b) Infundibulum. It is the part of the Fallopian tube closest to the ovary, and its fimbriae help capture the released egg during ovulation and direct it into the Fallopian tube for possible fertilization.
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