The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic nerve connects the brain to the eye. To biologists, the optic chiasm is thought to be a ...
Tuberculous meningitis This is a coronal section through the optic chiasma and hippocampus in a patient who was HIV-positive. The leptomeninges are thickened by a grey exudate, which is especially ...