part_of part of part of capable of capable_of capable of secretory cell protein secreting cell smooth muscle cell kidney granular cell juxtaglomerular cell A smooth muscle cell that synthesizes, stores, and secretes the enzyme renin. This cell type are located in the wall of the afferent arteriole at the entrance to the glomerulus. While having a different origin than other kidney smooth muscle cells, this cell type expresses smooth muscle actin upon maturation. JG cell FMA:84138 renin secreting cell juxtaglomerular complex cell renin secretion into blood stream Homo sapiens Homo sapiens kidney