Which of the following part of corpus callosum develops first -
Dorsal part of genu
Ventral part of genu
Rostrum
Splenium
Ans. is 'a' i.e., Dorsal part of genu o During development of corpus callosum, the dorsal part of genu and the body/trunk 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.