<prompt> In an adult male, on per rectal examination, the following structures can be felt anteriorly except-Internal iliac lymph nodesBulb of the penisProstateSeminal vesicle when enlarged  <response>: The following structures can be palpated by the gloved index finger inserted into anal canal and rectum in the normal person:-1. Anteriorlyi In malesOpposite terminal phalanx:- Contents of the rectovesical pouch, posterior surface of bladder, seminal vesicle, and ductus deferens.Opposite middle phalanx :- Rectoprostatic fascia and prostate.Opposite proximal phalanx:- Perineal body, urogenital diaphragm, and bulb of the penis.ii In femalesOpposite terminal phalanx:- Rectouterine pouch, vagina, and cervix.Opposite middle phalanx :- Urogenital diaphragm and vagina.Opposite proximal phalanx:- Perineal body, and lower part of the vagina.2. PosteriorlySacrum, Coccyx, anococcygeal body and anorectal ring.3. LaterallyIschiorectal fossae and ischial spines. 