<prompt> Medial to lateral structure of Fallopian tube areAmpulla, Isthmus, InfundibulumInfundibulum, isthmus, AmpullaInterstitial, isthmus, ampulla, infundibulumInfundibulum, ampulla, isthmus, Interstitial  <response>: Interstitial, isthmus, ampulla, infundibulum 11- Dutta- Gynaecology 4thFallopian tube Uterine tube - 4 parts, from medial to lateral they are1. Intramural or interstitial - 1.25cm length - 1 mm in diameter2. Isthmus - almost straight 2.5 cm length 2.5 mm diameter3. Ampulla - tortuous 5 cm length ends in wide4. Infundibulum 1.2 cm length 6mm diameterFunctions -1. Transport of gametes2. To facilitate fertilization and survivl of zygote through its secretion 