<prompt> Which of the following area lies immediately lateral to the anterior perforating substance?UncusOrbital gyrusOptic ChiasmaLimen Insulae  <response>: Anterior perforating substance is an irregularly quadrilateral area in front of the optic tract and behind the olfactory trigone, from which it is separated by the fissure prima; medially and in front, it is continuous with the subcallosal gyrus; it is bounded laterally by Limen insulae of the olfactory tract and is continued into the uncus. 