Question:medium
Most common site for Fertilization is :
Most common site for Fertilization is :
Updated On: Jun 23, 2026
- Ampulla
- Isthmus
- Intramural
- Fimbriae
Show Solution
The Correct Option is A
Solution and Explanation
Tube anatomy walkthrough (lateral to medial): fimbriae, then ampulla, then isthmus, then intramural part.
The fimbriae only capture the ovum; they are the pick-up funnel, not where fusion happens, so option d is out.
The isthmus is the narrow muscular segment that the embryo passes THROUGH after fertilization; not the meeting point, so option b is out.
The intramural (interstitial) part lies within the uterine wall, far medial, and the egg has not travelled that far when sperm arrive, so option c is out.
The ampulla is the long, wide, tortuous lateral segment where sperm and ovum actually meet: the standard answer.
Two-for-one fact: the ampulla is BOTH the commonest site of fertilization AND the commonest site of tubal ectopic pregnancy. Lock in option a.
The fimbriae only capture the ovum; they are the pick-up funnel, not where fusion happens, so option d is out.
The isthmus is the narrow muscular segment that the embryo passes THROUGH after fertilization; not the meeting point, so option b is out.
The intramural (interstitial) part lies within the uterine wall, far medial, and the egg has not travelled that far when sperm arrive, so option c is out.
The ampulla is the long, wide, tortuous lateral segment where sperm and ovum actually meet: the standard answer.
Two-for-one fact: the ampulla is BOTH the commonest site of fertilization AND the commonest site of tubal ectopic pregnancy. Lock in option a.
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