Final answer:
Fibers in terms of brain anatomy tend to crisscross between the left and right hemispheres.
Step-by-step explanation:
Fibers in terms of brain anatomy tend to crisscross between the left and right hemispheres. The left hemisphere of the brain primarily controls the right side of the body, while the right hemisphere controls the left side. This communication is facilitated by a thick bundle of axons called the corpus callosum, which connects each point in the cerebrum to the opposite hemisphere.