Uberon definition : A decussation of the diencephalon where the fibers of the optic nerve cross;
Uberon synonym : optic chiasm; decussation of optic nerve fibers;
Uberon related term : optic chiasm (Rufus of Ephesus);
Uberon Homology note : The chiasm has been studied in great detail in some animals, while in others relatively
little or nothing is known. Although there are some gross architectural features that
are conserved within some animals, such as birds and fish, the general picture is
one of diversity. This review will attempt to consider the key features of such diversity
of chiasmatic organisation in vertebrates and the mechanisms that sculpt them from
the limited literature that is available. However, as so much research has been undertaken
on the structure and development of the chiasm in laboratory animals, any review must
consider the information that has been gleaned from them and hope that future studies
will determine whether the features revealed in these animals, and the underlying
mechanisms that generate them, have a common vertebrate plan.[uncertain][VHOG];