Question

Which of the following represents the correct pathway of the egg after leaving the ovary and entering the uterine tube?

infundibulum, ampulla, isthmus, uterus
ampulla, isthmus, infundibulum, uterus
infundibulum, isthmus, uterus, ampulla
uterus, isthmus, ampulla, infundibulum

Answer 1

Answer: Infundibulum, ampulla, isthmus, uterus.

Step-by-step explanation:

• The ovary produces the egg and, it releases one unfertilized egg every month.

• The egg then travels through the fallopian tube to the uterus.

• The fallopian tube consists of three parts:

1. Infundibulum- it is the most distal portion of the fallopian tube which receives the egg coming out of the ovary.

2. Ampulla- This is the next portion of the fallopian tube which is ciliated and is the site of fertilisation of the egg.

3. Isthmus- it is also a ciliated region which controls the transport of both sperm and the embryo.

• Finally, after passing through the isthmus the fertilized egg reaches the uterus where implantation takes place.

• So the journey of the egg from the ovary to uterus follows the pathway, ovary---> infundibulum--->ampulla--->isthmus--->uterus.