Uberon definition : A metanephric nephron is the functional unit of the metanephros[GO].;
Uberon Homology note : The primitive form of the vertebrate nephron consists of a vascular filtration surface
overlain with podocytes, a specialized coelomic cavity to receive the ultrafiltrate,
and a tubule for modification to final urine. Although previously thought to be unique
to the vertebrates, this design is now known to be widespread among invertebrates,
including most of the protochordates, and especially their larvae.[well established][VHOG];
develops from