part_of part of part of kidney loop of Henle thin descending limb epithelial cell kidney loop of Henle long descending thin limb outer medulla epithelial cell 2022-05-13T11:11:07Z Epithelial cell of the descending thin limb of the long loop (juxtamedullary) nephron that spans the outer medulla (inner stripe). It is known in some mammalian species that the long descending limb of the loop of Henle in the outer medulla selectively expresses the secreted activin-antagonist protein follistatin (Fst), the GPI-linked adhesion protein Cdh13, and the protein kinase Stk32a. epithelial cell of the outer medulla of the long descending limb of the loop of Henle Homo sapiens Homo sapiens long descending thin limb