Multiple choice Which of the following is not a function of Sertoli cells? Aromatization of androgen precursors to estrogen Maintenance of the blood–testis barrier Metabolic support of developing spermatozoa It acts as phagocytes Maintains the position of primordial germ cells against the basement membrane Reveal answer Fill a bubble to check yourself E Correct answer Explanation Primordial germ cells are maintained against the basement membrane of the seminiferous tubules; Sertoli cells do not appear to have a role in this process.