The most wide part of the fallopian tube is the infundibulum close to the fimbriae. This is where the fallopian tube meets the ovary and is responsible for capturing the released egg during ovulation.

Anatomy of the Fallopian Tube:

The fallopian tube is a muscular tube that connects the ovary to the uterus. It is divided into three parts: the isthmus, the ampulla, and the infundibulum.

The isthmus is the narrowest part of the fallopian tube and is located near the uterus. The ampulla is the widest and longest part of the tube, and it is where fertilization usually occurs. The infundibulum is the funnel-shaped portion of the tube that is closest to the ovary.

Function of the Infundibulum:

The infundibulum is responsible for capturing the egg as it is released from the ovary during ovulation. The fimbriae, finger-like projections at the end of the infundibulum, sweep over the ovary and create a current that helps draw the egg into the fallopian tube.

Once the egg is inside the fallopian tube, it travels towards the uterus, propelled by the movement of cilia and the contractions of the fallopian tube's muscular wall. If sperm are present in the tube, fertilization can occur in the ampulla.

Conclusion:

In conclusion, the most wide part of the fallopian tube is the infundibulum close to the fimbriae. This is an important part of the female reproductive system as it is responsible for capturing the egg during ovulation and facilitating fertilization.