Humans: In humans, the uterine tubes (also known as fallopian tubes or oviducts) are approximately 10-12 centimeters (cm) long.
Cats: In cats, the uterine tubes are relatively shorter compared to humans and are approximately 2-4 cm in length.
Path:
Humans: In humans, the uterine tubes extend from the upper corners of the uterus and run laterally towards the ovaries. Each uterine tube has four distinct sections: the interstitial portion, the isthmus, the ampulla, and the infundibulum.
1. Interstitial portion: This section of the uterine tube is located within the uterine wall.
2. Isthmus: The isthmus is the narrowest part of the uterine tube and connects the interstitial portion to the ampulla.
3. Ampulla: The ampulla is the widest and longest section of the uterine tube. It is in the ampulla where fertilization typically occurs.
4. Infundibulum: The infundibulum is the funnel-shaped end of the uterine tube that surrounds the ovary. Finger-like projections called fimbriae extend from the infundibulum and help capture the released egg during ovulation.
Cats: Similar to humans, uterine tubes in cats also extend from the uterus towards the ovaries. However, there are some anatomical differences:
1. The uterine tubes in cats are relatively straighter compared to the more convoluted tubes in humans.
2. The infundibulum in cats is comparatively larger and more expanded, creating a wider opening near the ovary.
Overall, while both humans and cats possess uterine tubes that serve the purpose of transporting eggs from the ovaries to the uterus, there are variations in their relative lengths and specific anatomical structures.