æggelederne

The fallopian tubes, also known as oviducts or uterine tubes, are a pair of muscular tubes that extend from the uterus to the ovaries in the female reproductive system. They play a crucial role in reproduction by transporting eggs from the ovaries to the uterus and serving as the usual site of fertilization.

Each fallopian tube is approximately 10 to 13 centimeters in length and is divided into several sections. The infundibulum is the funnel-shaped opening near the ovary, which has finger-like projections called fimbriae that help to sweep the released egg into the tube. The ampulla is the widest part of the tube, where fertilization typically occurs. The isthmus is the narrower section that connects to the uterus.

The inner lining of the fallopian tubes is covered with cilia, which are tiny hair-like structures that beat rhythmically to propel the egg towards the uterus. Smooth muscle in the tubal wall also contracts to aid in this movement.

During ovulation, an egg is released from the ovary and is captured by the fimbriae of the fallopian tube. If sperm are present in the tube, fertilization can occur in the ampulla. The resulting zygote then travels down the tube to the uterus for implantation. Blockages or damage to the fallopian tubes can lead to infertility or ectopic pregnancy, where the fertilized egg implants outside the uterus.