The metanephric ascending thin limb is a segment of a nephron tubule in the metanephros lying in the inner medulla that is permeable to ions but not to water and has a simple epithelium; active transepithelial solute transport is absent[GO]. [ http://amigo.geneontology.org/amigo/term/GO:0072218 ]
This is just here as a test because I lose it