In humans, fertilisation normally takes place in the
Answer and explanation
Correct answer: B. ampulla of the fallopian tube
- Step 1: Following ovulation, the secondary oocyte is guided into the fallopian tube (oviduct) by fimbriae.
- Step 2: Normal fertilization between capacitated spermatozoa and the oocyte occurs specifically in the ampulla (ampullary region), the widest part of the fallopian tube.
- Step 3: The resulting cleavage-stage zygote then travels down the isthmus into the uterine cavity for subsequent blastocyst implantation.
Answer
ampulla of the fallopian tube.
Why not the others: vagina serves as the copulatory canal and birth canal, receiving ejaculated semen; ovary produces and ovulates secondary oocytes and secretes steroid hormones; uterus is the muscular organ where blastocyst implantation and embryonic/fetal gestation occur.
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