<prompt> Internal spermatic fascia is derived from -External oblique muscleInternal oblique muscleFascia transversalisColies fascia  <response>: Ans. is c i.e., Fascia transversalis o The layers of scrotum from outside to inside are:-i Skinii Dartos muscle smooth muscle layer continous with Codes fascia of perineum posteriorly and Scarpas fascia and Campers fascia anteriorly.iii The external spermatic fascia, extension from external oblique.iv The cremastric muscle, continuous with fascia from internal oblique.v The internal spermatic fascia, continuous with fascia from fascia transversalis. 