<prompt> Which of the following part of corpus callosum develops first -Dorsal part of genuVentral part of genuRostrumSplenium  <response>: Ans. is a i.e., Dorsal part of genu o During development of corpus callosum, the dorsal part of genu and the bodytrunk form first.o Subsequently, ventral anterior part of genu and then the splenium ariseo Last, the rostrum develops.o As a rule of thumb, the corpus callosum is formed from anterior to posterior, with the exception of anterior part of genu and rostrum. 