Order of the following structures of fallopian tube from lateral to medial-: (A) Ampulla-Infundibulum-Isthmus-Interstitial, (B) Infundibulum-Ampulla-Isthmus-Interstitial, (C) Isthmus-Infundibulum-Ampulla-Interstitial, (D) Ampulla-Isthmus-Infundibulum-Interstitial
Answer is B. The fallopian tube is divided into four parts from lateral to medial, as, infundibulum, ampulla, isthmus, and interstitial regions.