Uberon definition : Anatomical structure of largely lymphoid tissue that functions in cell-mediated immunity
by being the site where T cells develop.;
Uberon synonym : thymus gland; thymus organ;
Uberon Homology note : A thymus develops in all vertebrates from the endodermal epithelium of certain pharyngeal
pouches and from the adjacent ectodermal epithelium. In fishes, all the pouches, or
the first four, contribute to thymus formation, but in tetrapods, the number is more
restricted. In mammals, only the third and fourth are involved, and the contribution
of the third is by far the greater.[well established][VHOG];