inferior pole

in·fe·ri·or pole

[TA] for a structure having a vertically oriented long axis, the point at the lower end of the axis, nearest the soles of the feet; the lowest point of a structure's surface. See: inferior pole of kidney, lower pole of testis. Synonym(s): extremitas inferior [TA], inferior extremity1 ☆ , polus inferior ☆ , lower pole