part of part of results in development of anatomical structure development ascending thin limb development metanephric ascending thin limb development 2010-03-18T03:34:42Z The process whose specific outcome is the progression of a metanephric ascending thin limb over time, from its formation to the mature structure. 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:0072218 biological_process metanephric nephron tubule development metanephric loop of Henle development metanephric ascending thin limb